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In addition to changing the way the world looks at our nation, the Information Technology allowed Services (ITeS) industry has also made important contributions to the Indian economy. Information technology (IT) implies data creation, management, storage and exchange. ... The data is the outcome of processing the data.

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how many eleements to learn for class 10 ??

Posted by Om Tiwari 4 years, 6 months ago (9400017)

CBSE > Class 10 > Science

4 answers

Binson Rongpi 4 years, 6 months ago (11419522)

Je politechnic about

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Krishna Singh 4 years, 6 months ago (10919249)

115

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Prajwal G N 4 years, 6 months ago (9509194)

50 elements

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Akshat Holland Minettee 4 years, 6 months ago (8406082)

You should be knowing the symbols , atomic mass and atomic number of at least first 20 Elements from the periodic table for class 10th level

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Tiger is a ___________ beacose it eats onlyments

Posted by Avani Pande 4 years, 6 months ago (11409386)

CBSE > Class 06 > Social (OLD)

5 answers

Kirandeep Kaur? 4 years, 5 months ago (11441638)

Carnivore

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Haripriya Das 4 years, 5 months ago (11444690)

carnivore

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Yashika N 4 years, 5 months ago (11214401)

Carnivore

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Smruti Ram.. 4 years, 6 months ago (11351263)

carnivore

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Prachi K 😌 4 years, 6 months ago (11054561)

Carnivore

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599169101

Posted by Sanket Kumar 4 years, 6 months ago (11379113)

CBSE > Class 09 > Mathematics

5 answers

Adarsh Kumar 4 years, 6 months ago (11276052)

Koi mere guild me my name is Adarsh789j

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Sumesh Sharma 4 years, 6 months ago (11337048)

????

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Rajat Bhatt 4 years, 6 months ago (11388226)

I'm already in a guild

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Sanket Kumar 4 years, 6 months ago (11379113)

Rajat bhai meri guild mein aayoge

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Sanket Kumar 4 years, 6 months ago (11379113)

I am very sad ??

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Ifx 2+1 and y

Posted by Nikita Shekhar Nikita Shekhar 4 years, 6 months ago (10418265)

CBSE > Class 09 > Mathematics

0 answers

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37+782726678+72663+8363649(34)=

Posted by Deepika Rk 4 years, 6 months ago (11409805)

CBSE > Class 06 > Maths (OLD)

1 answers

Sam Rehan 4 years, 6 months ago (11169299)

791,163,061

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(×+4)(4x+5)(3x+8)

Posted by Sanket Kumar 4 years, 6 months ago (11379113)

CBSE > Class 09 > Mathematics

5 answers

Rajat Bhatt 4 years, 6 months ago (11388226)

I no mene sari chat padh li

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Rajat Bhatt 4 years, 6 months ago (11388226)

Hands off to u all what a prank :)

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Sanket Kumar 4 years, 6 months ago (11379113)

Nhi rajat bhai vo prank kr diya diksha nhi aayi ? vo Daksh tha ?

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Rajat Bhatt 4 years, 6 months ago (11388226)

???

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Sanket Kumar 4 years, 6 months ago (11379113)

Diksha ( # LOL SANKET) tumbhi mje lelo ab ??

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( वह व्यक्ति कठोर परिश्रम कर रहा है ) Ka pad prichay kya hoga??

Posted by Rimjhim Chaudhari 4 years, 6 months ago (9502405)

CBSE > Class 10 > हिंदी ए

0 answers

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Convert the following temperature to Celsius sale (a) 300k ( b) 573k

Posted by Sujeeth Hulyal 4 years, 6 months ago (11405789)

CBSE > Class 09 > Science

3 answers

Saumya Rwt 4 years, 6 months ago (5748227)

27°C and 300°C

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Adarsh Kumar 4 years, 6 months ago (11276052)

When we have to convert k into °C we have to substrate 273 from 300 ans will be 27°C & for a ex. 27°C convert in k then we have to add 27+273=300

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Sanket Kumar 4 years, 6 months ago (11379113)

Simple hai bro (a) 27°C , (b) 300°C

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How are computer cateogrised

Posted by Shivani Shivani 4 years, 6 months ago (11394676)

CBSE > Class 09 > Computer Applications (165)

2 answers

Rishika Rawat 4 years, 6 months ago (11092627)

Computers are categorized by a wide variety of factors, including size, calculation speed, processor power, processor number, price and application. ... These are the most expensive and the fastest computers. They usually have many of the most powerful processors available, and evaluate complex models.

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Sanket Kumar 4 years, 6 months ago (11379113)

The power and number of a computer's processors help determine its category. Computers are categorized by a wide variety of factors, including size, calculation speed, processor power, processor number, price and application. ... Many computers can work in several categories, but are optimized for a particular use.

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What gandhi declare the battle of champaran is won

Posted by Ansh Agrawal 4 years, 5 months ago (10632183)

CBSE > Class 12 > English Core

1 answers

Sia ? 4 years, 5 months ago (6945213)

Gandhi say the battle of champaran is won because the movement of nill farmer had stopped.
Gandhi was ready to go to jail fighting against the injustice to the sharecroppers. Many prominent lawyers had come from all over Bihar to advise and help him. At first, they said they would go back if Gandhi went to prison. Later, they had consultations. They told Gandhi they were ready to follow him into jail. This support made Gandhi extremely happy and confident. This confidence led him to exclaim that the battle of Champaran was won.

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An electrolyte dissolve in water when

Posted by Sachin Yadav 4 years, 6 months ago (9516933)

CBSE > Class 11 > Chemistry

1 answers

??? ??? 4 years, 6 months ago (10108777)

When lattice energy of ion is less than hydration energy.

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Cube ka formula

Posted by Himanshu Tanwar 4 years, 5 months ago (9678554)

CBSE > Class 07 > Mathematics

1 answers

Karan Karan 4 years, 6 months ago (3751266)

What

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What is slave trade

Posted by Rajbala . 4 years, 6 months ago (11163003)

CBSE > Class 09 > Social Science

1 answers

Master Jd 4 years, 6 months ago (11337808)

Answer : Transporting, and selling of human beings as slaves, in particular the former trade in black Africans as slaves by European countries and North America.

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56855807+7885809=

Posted by Sanket Kumar 4 years, 6 months ago (11379113)

CBSE > Class 09 > Mathematics

2 answers

Shalu Kumari 4 years, 6 months ago (11437871)

56855807+7885809 = 64741616

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Sanket Kumar 4 years, 6 months ago (11379113)

Bhai prank kr diya priya ?? diksha ke name se mtlb aapne nhi Daksh ne ?

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Which type of the cell division is required for growth and repair of the body and which type is involved in formation of gamates?

Posted by Saumya Rwt 4 years, 6 months ago (5748227)

CBSE > Class 09 > Science

1 answers

Yuthojit Dey Ix-7 4 years, 6 months ago (11406962)

Mitosis

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Corona nibandh

Posted by Durgesh Vishwakarma 4 years, 6 months ago (9650835)

CBSE > Class 08 > Sanskrit

1 answers

Jyoti Patra 4 years, 6 months ago (11407516)

can you give me ch 1 questions and answers

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A particle is moving in a circular path of radius r the displacement after 3.5 would be?

Posted by Saumya Rwt 4 years, 6 months ago (5748227)

CBSE > Class 09 > Science

0 answers

ANSWER

i wanted to study physics

Posted by Firoj Malik 4 years, 6 months ago (11409406)

CBSE > Class 12 > Physics

1 answers

Snehil J@@T 4 years, 6 months ago (9642891)

Then what are you waiting for ?

2 Thank You

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Who is called as the tiny teacher and why

Posted by Shivu N 4 years, 6 months ago (11384907)

CBSE > Class 07 > English

1 answers

Ravneet Kaur 4 years, 6 months ago (11272025)

Ants are called the tiny teachers as theyteach us hard work, sense of duty, discipline, cleanliness and care for their young ones.

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An order issued by President Musharraf in which the president could dismiss the national or provincial assemblies was

Posted by Siddhant Garg 4 years, 6 months ago (11406467)

CBSE > Class 09 > Social Science

1 answers

Valarmathi S 4 years, 6 months ago (11130759)

Legal framework order of 2002

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Chap 1 ex 1.3 9th sum

Posted by Sri Janani 4 years, 6 months ago (8569339)

CBSE > Class 11 > Applied Maths

0 answers

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There are a lot of variation in the food eaten in different regions of india

Posted by Avani Pande 4 years, 6 months ago (11409386)

CBSE > Class 06 > Science (OLD)

2 answers

Priyanshi Aggrawal 4 years, 6 months ago (9256267)

Hii my name is nancy Aggrawal from class 6 A

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Asmi Dahivalkar 4 years, 6 months ago (11410926)

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English reader book class 5th chapter 1 trust in God and do the right ncert solution

Posted by Harshraj Patel 4 years, 6 months ago (11406273)

CBSE > Class 05 > English

1 answers

Priyanka Dharmwan 4 years, 6 months ago (11400502)

4 lesson all questions and answers fill in the blanks

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Find out the rhyming words in the poem

Posted by Harshraj Patel 4 years, 6 months ago (11406273)

CBSE > Class 05 > English

0 answers

ANSWER

Chapter 6 exercise

Posted by Kanchi 🙂 4 years, 6 months ago (6210663)

CBSE > Class 07 > Science

5 answers

Piyush Rathod 4 years, 5 months ago (11451768)

Search on google

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Iqra Girach 4 years, 6 months ago (11054798)

ncert solutions pe dhek lo

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Ravneet Kaur 4 years, 6 months ago (11272025)

Q.1.Classify the changes involved in the following processes as physical or chemical changes: (a) Photosynthesis (b) Dissolving sugar in water (c) Burning of coal (d) Melting of wax (e) Beating aluminium to make aluminium foil (f) Digestion of food Ans.(a) Chemical change (b) Physical change (c) Chemical change (d) Physical change (e) Physical change (/) Chemical change Q.2.(a) Cutting a log of wood into pieces is a chemical change. (True/ False) (b) Formation of manure from leaves is a physical change. (True/ False) (c)Iron pipes coated with zinc do not get rusted easily. (True/ False) (d)Iron and rust are the same substances. (True/ False) (e)Condensation of steam is not a chemical change. (True/ False) Ans. (a)False Correct statement: Cutting a log of wood into pieces is an irreversible physical change. (b)False Correct statement: Formation of manure from leaves is a chemical change. (c) True (d)False Correct statement: Iron and rust are two different chemical substances. (e)True Q.3.Fill in the blanks in the following statements: (a) When carbon dioxide is passed through lime water, it turns milky due to the formation of . (b) The chemical name of baking soda is . (c) Two methods by which rusting of iron can be prevented are __________ and __________ (d) Changes in which only ____________ properties of a substance change are called physical changes. (e) Changes in which new substances are formed are called _____________ changes.. Ans. (a)calcium carbonate (b) sodium hydrogen carbonate (c) painting or greasing, galvanisation (d) physical (e) chemical Q.4. When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain. Ans. The reaction between baking soda and lemon juice can be given as below: Lemon juice + Baking soda ————-> C02 (bubbles) + Other substances (Citric acid) (Sodium hydrogen carbonate) (Carbon dioxide) It is a chemical change Q.5. When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place. Ans. When a candle burns, both physical and chemical changes occur: (i) Physical change: melting of wax, vapourisation of melted wax. (ii) Chemical change: Burning of vapours of wax to give carbon dioxide, heat and light. LPG is another example in which physical change occurs when LPG comes out of cylinder and is converted from liquid to gaseous state and a chemical change occurs when gas burns in air. Q.6. How would you show that setting of a curd is a chemical change? Ans. We can say that setting of curd is a chemical change because we can not get the original substance, i.e., milk back and a new substance is formed with different taste, smell and other chemical properties Q.7. Explain why burning of wood and cutting it into small pieces are considered as two different types of changes. ~ Ans. Burning of wood is a chemical change because in burning new substances are formed as Wood + Oxygen ———–> Charcoal + Carbon dioxide + Heat + Light But cutting it into small pieces is physical change because no new substance is formed. We can only reduce the size of wood. Q.8. Describe how crystals of copper sulphate are prepared. Ans. Take a cupful of water in a beaker and add a few drops of dilute sulphuric acid. Heat the water. When it starts boiling, add copper sulphate powder slowly. Continue to add copper sulphate powder till no more powder can be dissolved. .During this process continuously stir the solution. Filter the solution. Leave it for cooling. Look it after some time, you can see the crystals of copper sulphate Q.9. Explain how painting of an iron gate prevents it from rusting? Ans. It is known that for rusting the presence of oxygen and moisture is essential. Painting prevents the iron gate from coming in contact with oxygen and moisture. Q.10. Explain why rusting of iron objects is faster in coastal areas than in deserts. Ans. As content of moisture in the air in coastal areas is higher than in the air in deserts. So, the process of rusting is faster in coastal areas. Q.11. The gas we use in the kitchen is called liquified petroleum gas (LPG). In the cylinder it exists as a liquid. When it comes out from the cylinder it becomes a gas (Change- A) then it bums (Change-B). The following statements pertain to these changes. Choose the correct one. (i) Process-A is a chemical change. (ii) Process-B is a chemical change. (iii) Both processes A and B are chemical changes. (iv) None of these processes is a chemical change. Ans. (ii) Process-B is a chemical change. Q.12.Anaerobic bacteria digest animal waste and produce biogas (Change-A). The biogas is then burnt as fuel (Change-B). The following statements pertain to these changes. Choose the correct one. (i) Process-A is a chemical change. (ii) Process-B is a chemical change. (iii) Both processes A and B are chemical changes. (iv) None of these processes is a chemical change. Ans.(iii) Both processes A and B are chemical change

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Rachit Garg 4 years, 6 months ago (9093484)

Exercise Questions 1. Classify the changes involved in the following processes as physical or chemical changes: (a) Photosynthesis (b) Dissolving sugar in water (c) Burning of coal (d) Melting of wax (e) Beating aluminium to make aluminium foil (f ) Digestion of food Solution: a) Chemical change b) Physical Change c) Chemical change d) Physical Change e) Physical Change f) Chemical change 2. State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook. (a) Cutting a log of wood into pieces is a chemical change. (True/False) (b) Formation of manure from leaves is a physical change. (True/False) (c) Iron pipes coated with zinc do not get rusted easily. (True/False) (d) Iron and rust are the same substances. (True/False) (e) Condensation of steam is not a chemical change. (True/False) Solution: a) False b) False c) True d) False e) True 3.Fill in the blanks in the following statements: (a) When carbon dioxide is passed through lime water, it turns milky due to the formation of _________. (b) The chemical name of baking soda is _________. (c) Two methods by which rusting of iron can be prevented are _________ and _________. (d) Changes in which only _________ properties of a substance change are called physical changes. (e) Changes in which new substances are formed are called _________ changes. Solution: (a) When carbon dioxide is passed through lime water, it turns milky due to the formation of Calcium carbonate. (b) The chemical name of baking soda is Sodium hydrogen carbonate. (c) Two methods by which rusting of iron can be prevented are painting and galvanization. (d) Changes in which only physical properties of a substance change are called physical changes. (e) Changes in which new substances are formed are called chemical changes. 4. When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain. Solution: When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a carbon dioxide gas. This is a chemical change. Lemon juice + Baking soda → Carbon dioxide + other substances 5. When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place. Solution: Candle Burning Physical change is melting of wax: The chemical change is the burning of gas with the evolution of CO2 Digestion of Food Physical change is the breakdown of larger food molecules to simpler ones The chemical change is the digestion of food by the action of HCl and enzymes. 6. How would you show that setting of curd is a chemical change? Solution: The setting of curd is a chemical change because curd cannot be turned back to milk. The properties of milk and curd are different. 7. Explain why burning of wood and cutting it into small pieces are considered as two different types of changes. Solution: Cutting of wood is a physical change as it does not change the nature of the wood. On the other hand, burning of wood is a chemical change as wood is converted to charcoal with the liberation of CO2. 8. Describe how crystals of copper sulphate are prepared. Solution: Crystals of copper sulphate are prepared using the crystallization method, which is described as follows Take a cupful of water in a beaker. Add a few drops of dilute sulphuric acid to this. Heat the water and when it starts boiling, add copper sulphate powder while still stirring. Add the copper sulphate powder till the solution becomes saturated. Filter into a china dish and allow it to cool. The solution should be kept undisturbed. Slowly, the crystals of copper sulphate separate out. 9. Explain how painting of an iron gate prevents it from rusting Solution: Rusting of iron requires contact with water (moisture) and oxygen. By painting an iron gate, we prevent the contact between iron, Oxygen and water (moisture), this helps in preventing rusting of iron. 10. Explain why rusting of iron objects is faster in coastal areas than in deserts. Solution: Rusting of iron requires contact with water (moisture) and oxygen. In coastal areas, humidity is more in comparision to that in deserts; hence, rusting of iron objects is faster in coastal areas than in deserts. 11. The gas we use in the kitchen is called liquified petroleum gas (LPG). In the cylinder it exist as a liquid. When it comes out from the cylinder it becomes a gas (Change – A) then it burns (Change – B). The following statements pertain to these changes. Choose the correct one. (i) Process – A is a chemical change. (ii) Process – B is a chemical change. (iii) Both processes A and B are chemical changes. (iv) None of these processes is a chemical change Solution: The answer is (ii) Process – B is a chemical change. 12. Anaerobic bacteria digest animal waste and produce biogas (Change – A). The biogas is then burnt as fuel (Change – B). The following statements pertain to these changes. Choose the correct one. (i) Process – A is a chemical change. (ii) Process – B is a chemical change (iii) Both processes A and B are chemical changes. (iv) None of these processes is a chemical change Solution: Answer is (iii) Both processes A and B are chemical changes.

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Keya .V. Gaudani 4 years, 6 months ago (9596936)

Noob

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Sheet yudh hone ke kya cause the

Posted by Amrit Kumar 4 years, 6 months ago (9327563)

CBSE > Class 12 > राजनीति विज्ञान