CBSE > Class 10 | CBSE Board | Homework Help

Burning is a chemical change that involves oxidation thus producing heat and light. When a candle is burnt in air, the mass of the product is increased due to atmospheric oxygen which combines with the carbon and hydrogen of the candle wax during burning to produce water vapour and carbon dioxide. Also, the original properties of the reactants are altered. All these factors prove that the burning of a candle is a chemical change.

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Why soil is considered as a resource

Posted by Sᴜʙʜᴀᴊɪt Aᴅʜɪᴋᴀʀy 5 years, 7 months ago

CBSE > Class 10 > Social Science

1 answers

Joel Joji 5 years, 7 months ago

Soil is a natural resources weathering is the process of break down of rocks soil gets it colour from parent rock .the thin layer of grainy substance that covered the earth surface is called soil

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Sadhu ko Sambhal lene ka kya hak

Posted by Manasvi Negi 5 years, 7 months ago

CBSE > Class 10 > हिंदी ए

0 answers

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Explain about atoms

Posted by Joel Joji 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 7 months ago

It is the smallest constituent unit of matter that posses the properties of the chemical element. Atoms don’t exist independently, instead, they form ions and molecules which further combine in large numbers to form matter that we see, feel and touch.

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Joel Joji 5 years, 7 months ago

Atoms are the building blocks of matter

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कुछ विभागों के सूचना पट्टो पर अशुद्ध हिंदी लिखी मिलती है, इस ओर ध्यान आकर्षित करते हुए किसी संपादक को पत्र लिखिए

Posted by ẞümít Råj 5 years, 7 months ago

CBSE > Class 10 > हिंदी ए

0 answers

ANSWER

Find linear equations which intersects at point or is parallel or coincide 2x-4=2, 2y-4x=2

Posted by Daizy Pandya 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Praman Jain 5 years, 7 months ago

I think ur question is little incorrect...I mean 2x-4=2..it must be 2x-4y=2....Is it???

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I mean to say that where are the important dates ?like when Napoleon came . All important dates

Posted by Shubham Chauhan 5 years, 7 months ago

CBSE > Class 10 > Social Science

0 answers

ANSWER

Q. Interneurons are constantly __active___. What does this active provide the context for? Plz Ans!!!!

Posted by Yuvika Mourya 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 5 months ago

Interneuron refer to any neuron that acts as an intermediary in passing signals between two other neurons. Interneurons do not have a motor or sensory functions; they just act to pass on information. Interneuron receives information from both external (through the senses) and internal (from muscles, organs and glands) environment. Interneuron. only located in CNS & connect between motor and sensory neurons. -Exist only in the central nervous system (brain and spinal cord). The nerve cells of the central nervous system are all interneurons. The interneurons receive impulses from the sensory neurons. They interpret the information received from other neurons and relay impulses to motor neurons for an appropriate response.

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Divide 1359 into1:2:3

Posted by Rahul Kumar 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Anonymous . 5 years, 6 months ago

Hello mate.... 1+2+3=6.......(digit sum) Total=1359 1st share= (1*1359)/6 =226.5 2nd share= (2*1359)/6 =453 3rd share=(3*1359)/6 =679.5 Hope it helps....

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Yogita Ingle 5 years, 7 months ago

Let common multiple is x

Then three number are x, 2x and 3x
As per given condition

x + 2x + 3x = 1359
6x = 1359

x = 1359/6 = 226.5

So, numbers are 226.5, 453, 679.5

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Do you think that Amanda is seeking refuge in the fantasies and illusions away from the constant nagging and bickering of her mother. Give reasons in the light of understanding of the poem Amanda.

Posted by Nischay Sharma 5 years, 6 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Hamare amasy me aml ki kya bhumikahai hai

Posted by Suresh Ram 5 years, 7 months ago

CBSE > Class 10 > विज्ञान

2 answers

Neeraj Arya 5 years, 6 months ago

Bhojan ka pachan karta hai

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Innocent ?? Boy?? 5 years, 6 months ago

Yah hamare body mai amal pradan karta hai . Aur yah bacteria ko bhi marta hai

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Discuss the problem of unemployment in primary sector

Posted by Shubhang Shrivastav 5 years, 7 months ago

CBSE > Class 10 > Social Science

1 answers

Meghna Thapar 5 years, 5 months ago

The problem of unemployment gives rise to the problem of poverty. Young people after a long time of unemployment find the wrong way to earn money. To get rid from the unemployment stress, they accept alcohol or drugs. Unemployment in India are: ▪ Excessive burden of population on cultivation; Rapidly increasing population; ▪ Low productivity in agriculture sector; ▪ Defective economic planning, and ▪ Large-scale production and mechanization. have found Employment for some meritorious people.

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Difference Between saprophytic and holozoic nutrition

Posted by Satyanarayan Pareek 5 years, 7 months ago

CBSE > Class 10 > Science

4 answers

Joel Joji 5 years, 7 months ago

The food that break diwn in inside the body is called sapotropic nutrition

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Joel Joji 5 years, 7 months ago

The food that break down outside the body is called holozoic

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Yuvika Mourya 5 years, 7 months ago

Saprophytic nutrition ⚫those organism which feed dead and decay organisms. ⚫digestion takes place outside of body. Holozoic nutritrient ⚫those organism which feed by taking nutrients from others. ⚫digestion takes place inside the body. Hope this will help u.??

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Bunny ?? 5 years, 7 months ago

Holozoic nutrition defines modes of nutrition like food particles digestion and absorption whereas saprophytic nutrition defines the nutrition mode of fungi and bacteria. Holozoic nutrition cannot digest their food outside their body and examples are animals like dog, monkeys, etc.

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(1+tan theeta +sec theeta) (1+cot theeta -cosec theeta) =

Posted by Pradeep Chandani 5 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Examine the land use pattern in India with help of pie diagram

Posted by Arth Ghoniya 5 years, 7 months ago

CBSE > Class 10 > Social Science

1 answers

Yogita Ingle 5 years, 7 months ago

Land resources in India are primarily divided into agricultural land, forest land, land meant for pasture and grazing, and waste land. Waste land includes rocky, arid and desert areas, and land used for other non-agricultural purposes such as housing, roads and industry. According to the recent data, about 54% of the total land area is cultivable or fallow, 22.5% is covered by forests, and 3.45% is used for grazing. The rest is waste land, with traces of miscellaneous cultivation.
The land under forest has not increased since 1960–61 because in the post-independence era demand for more land to expand agriculture, mainly after Green Revolution, developmental works and infrastructural facilities, led to clearance of forests areas. Industrialization and urbanization also decreased the forest area. Thus, land under forest has increased by only about 4% since 1960-61.

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Passage proposal

Posted by Ganesh Ganesh 5 years, 7 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Which term of the AP 24,21,18,15,.......Is the first negative term?

Posted by Saurabh Tripathi 5 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Yogita Ingle 5 years, 7 months ago

Let nth term of the given AP be the first negative term.

AP = 24 , 21 , 18

Here,

First term ( a ) = 24

Commmon difference ( d ) = 21-24 = -4.
Then , Tn <0=> { a + ( n - 1 ) × d } <0
=> { 24 + ( n - 1 ) × -3 } <0

=> 27 - 3n <0

=> 27 < 3n

=> 3n > 27

=> n = 9.

n = 10

Hence,

The 10th term is the first negative term of the given AP.

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Pushpa Yadav 5 years, 7 months ago

-3

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Chaitanya Thakkar 5 years, 7 months ago

-3

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is refresh button reach us to home page?

Posted by Vishal Tiwari 5 years, 7 months ago

CBSE > Class 10 > Computer Applications (165)

1 answers

Harshit Gupta 5 years, 6 months ago

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ANSWER

Ch1 a letter to god questions and answers

Posted by Pallavi Kumari 5 years, 7 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Bunny ?? 5 years, 7 months ago

See carefully in this app. U will get it

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ANSWER

Where is baxuite found

Posted by Nataraj Nataraj 5 years, 7 months ago

CBSE > Class 10 > Social Science

1 answers

Yogita Ingle 5 years, 7 months ago

Bauxite deposits are formed by the decomposition of a wide variety of rocks rich in aluminium silicates.
It is an important metal because it combines the strength of metals such as iron with extreme lightness, with good conductivity.
They are mainly found in Amarkantak plateau, Maikal hills and the plateau region of Bilaspur.
Odisha is the largest bauxite producing state. Panchpatmali deposits in Koraput district (Odisha) are the most important bauxite deposits in the state.

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Prove root 2 is an irrational number

Posted by Aastik Singh 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 7 months ago

Let us assume √2 is rational number.
a rational number can be written into he form of p/q
√2=p/q
p=√2q
Squaring on both sides
p²=2q²__________(1)
.·.2 divides p² then 2 also divides p
.·.p is an even number
Let p=2a (definition of even number,'a' is positive integer)
Put p=2a in eq (1)
p²=2q²
(2a)²=2q²
4a²=2q²
q²=2a²
.·.2 divides q² then 2 also divides q
Both p and q have 2 as common factor.
But this contradicts the fact that p and q are co primes or integers.
Our supposition is false
.·.√2 is an irrational number.

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Yuvika Mourya 5 years, 7 months ago

It is given in ncert exampler in this app only.

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An organic compound ‘A’ is an essential constituent of wine and beer. Oxidation of ‘A’ yields an organic acid ‘B’ which is present in vinegar. Name the compounds ‘A’ and ‘B’ and write their structural formula. What happens when ‘A’ and ‘B’ react in the presence of an acid catalyst? Write the chemical equation for the reaction.

Posted by Divyabharati Arakeri 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Parul Ailawadi 5 years, 6 months ago

A is ethanol(C2H5OH) and B is ethanoic acid(CH3COOH) When A and B reacts in the presence of acid catalyst an ester is formed C2H5OH+CH3COOH----------------->CH3COOC2H5+H2O

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prove that:- tan1°.tan2°.tan3°-----------------------------.tan88°.tan89°=1

Posted by Aryan Kumar 5 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How the HCL is formed

Posted by Pankaj Kumar Yadav 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Kushagra Rai 5 years, 7 months ago

HCl (HYDROCHLORIC ACID) is produced by the gastric glands of our stomach. This HCl is necessary to create an acidic medium for the the action of pepsin (that is an enzyme) on the food to make it more simpler to make the digestion process in our body more efficient.

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Manisha Lodhi 5 years, 7 months ago

Hcl is produce by the parietial cells of the stomach

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आजमाइश का अर्थ

Posted by Anushka ?? 5 years, 7 months ago

CBSE > Class 10 > हिंदी ब