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Nishi.S Patwari 5 years, 1 month ago

Carbon is a versatile element and is found in many different chemical compounds, including those found in space. Carbon is versatile because it can form single, double, and triple bonds. It can also form chains, branched chains, and rings when connected to other carbon atoms.

Sarangi Jayakumar 5 years, 1 month ago

Because of tetra valency and property of cantenation

Bhoomika N 5 years, 1 month ago

carbon is a versatile element and is found in many different chemical compounds, include those found space. carbon is versatile because it can form single, double, triple bonds .It can also form chains ,branched chain and ring when connected to other carbon atoms

ANSWER

मराठी

Posted by Bhavik Bodkhe 5 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is photosynthis

Posted by Vandita Kashyap 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Chinmayi Chinnu 5 years, 1 month ago

The process of food preparation in the green plants is called photosynthesis

Sahil Kumar 5 years, 1 month ago

The process by which green plants and certain other organisms transform light energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds

Bãd Bøy 5 years, 1 month ago

Plants prepare own food by CO2 and chlorophyll

Adithya Dev A 5 years, 1 month ago

It is an anabolic process by which GREEN PLANTS prepare their own food using CARBON DIOXIDE and WATER in the presence of SUNLIGHT and CHLOROPHYLL. 6CO2 + 6H2O -> C6H12O6 + 6O2 (above the arrow sunlight and chlorophyll)

ANSWER

Draw a ray diagram to explain the term angle of deviation

Posted by Prachi Pal 5 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Trouble Gamer Op 5 years, 1 month ago

Ghu

ANSWER

What is anhydrous ?

Posted by Aditya Kumar 5 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Khushi 5 years, 1 month ago

Salts that have lost their water of crystallization on heating are called ′anhydrous salts′. For example :- When copper sulphate crystals (CuSO4.5H2O), which are blue, are heated strongly, they lose all the water of crystallization and form anhydrous copper sulphate (CuSO4) which is white.

ANSWER

Smoking diesse

Posted by Monster Gunda 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Adithya Dev A 5 years, 1 month ago

Smoking can cause damage to Respiratory tract in many ways ranging from LUNG CANCER to EMPHYSEMA (losing elasticity of Alveolar sacs)

Bhavik Bodkhe 5 years, 1 month ago

Damage to respiratory system Lung cancer

Aditya Kumar 5 years, 1 month ago

Lungs cancer

Monster Gunda 5 years, 1 month ago

How to smoking damge lungs

ANSWER

Bleaching powder define

Posted by Monster Gunda 5 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Adithya Dev A 5 years, 1 month ago

BLEACHING POWDER is a YELLOWISH-WHITE powder which is prepared by passing CHLORINE through dry slaked lime. It is a good OXIDISING agent and is effective as a DISINFECTANT. Its formula is CaOCl2 and its chemical name is CALCIUM OXY CHLORIDE.

Âñkït Gupta 5 years, 1 month ago

Bhai ans me calcium Oxy chloride h na ki calcium chloride>.<

Avanesh Kumar 5 years, 1 month ago

1. Bleaching powder is calcium chloride . 2. The chemical formula of bleaching powder is CaOCl2 3. Bleaching powder is reacts with dilute acid to produce chlorine

ANSWER

How are lungs designed in human beings to maximise the area for exchange of gases?

Posted by Monika Gaur 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Suraj Gupta 5 years, 1 month ago

Lungs have large number of alveoli which increase the surface area for exchange of gases

Adithya Dev A 5 years, 1 month ago

1) Greater SURFACE area. 2) Extensive BLOOD supply. 3) Thin PERMEABLE walls.

Rigzin Yangsal 5 years, 1 month ago

Bean like structure

Ziddi Saim?❣️ 5 years, 1 month ago

????

ANSWER

What happens when nitric acid is added ti egg shell

Posted by Vaishnavi Vaishnavi 5 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Adithya Dev A 5 years, 1 month ago

A colourless and odourless gas is produced along with BRISK EFFERVESCENCE which turns lime water MILKY. (CO2)

A S 5 years, 1 month ago

2HNO3 + CaCO3 ----------> Ca(NO3)2 + H2O + CO2 this reaction takes place .

ANSWER

consider the circuit diagram shown in below .find the current 3 resistor

Posted by Vaishnavi Vaishnavi 5 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

Diamond is very hardsubstant why

Posted by Nikhil Tomar 5 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Aditya Kumar 5 years, 1 month ago

Each Carbon atom combine with four other atom of carbon

Sania Khan 5 years, 1 month ago

Because its molecules are tightly bound with each other hence its intermolecular forces of attraction is very high.since it is very hard.

ANSWER

What is versatile nature of carbon?

Posted by Nidhi Chaudhary 5 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Akshita ???? 5 years, 1 month ago

Versatile nature of carbon are _ 1- CATENATION- self linking of carbon to form chain and branch 2- TETRAVALENCY- carbon form sharing with four electrons or other elements sharing with four electrons

Adithya Dev A 5 years, 1 month ago

Ability of CARBON to produce an extensively LARGE number of compounds when compared to OTHER elements.

Himanshu Yadav 5 years, 1 month ago

Natural qualities or abilities of carbon .

ANSWER

Wheat is meant by the term valeney

Posted by Harshika Chaudhary 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Nancy Sinha 5 years, 1 month ago

Captivity of an element to gain or lose their electron is refer as valancy of an element

Piyush Sharma 5 years, 1 month ago

The combining power or capacity of an element is called valency

Suraj Gupta 5 years, 1 month ago

Combining capacity of an element is known as its valency.

Himanshi Pipple 5 years, 1 month ago

Valency is the combining power of an element.

ANSWER

Ryuei

Posted by Krishna Nand Yadav 5 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

student took 5 ml of lemon juice in each of test tube if she added 5 ml of water in a and 20 ml of water in be tested the pH value of all its range test tube a b and c in the increasing order of their PH value

Posted by Kamlesh Choudhary 5 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Archit @22 5 years, 1 month ago

C<A<B( C has highest ph value because it's not dilluted)(A is less diluted because of less water is added in it.)

ANSWER

Why does the animal with 2 chamber and 3 chamber heart have valves in their heart?

Posted by Msv Msv 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Alok Yadav 5 years, 1 month ago

To prevent the back flow of blood to heart

Sneha Gaikwad 5 years, 1 month ago

Dono mix nah ho sake

Akhya Sahay 5 years, 1 month ago

To prevent the backflow of blood

Mukul Kumar 5 years, 1 month ago

To prevent backflow of blood.

ANSWER

Science Xamidea sample paper

Posted by Himanshu Pandey 5 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is magnificent of plane mirror

Posted by Kailash Kumar 5 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Alok Yadav 5 years, 1 month ago

(+1)

Gagandeep Singh 5 years, 1 month ago

Akhya Sahay 5 years, 1 month ago

Magnification of plane mirror is 1

Mukul Kumar 5 years, 1 month ago

Pramit Kumar 5 years, 1 month ago

Magnificent of plane mirror is always (+1)

ANSWER

Type of fission

Posted by Sanjeev Kumar 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Akhya Sahay 5 years, 1 month ago

There are two types of fission.... 1)Binary 2) Multiple

Mukul Kumar 5 years, 1 month ago

Binary and multiple fission

Utsav Akbari 5 years, 1 month ago

i) Binnary fission ii) multi fission

Pihu ✨ 5 years, 1 month ago

Types of fission : (a) binary fission (b) multiple fission

ANSWER

What will happen male round seed crossed female wrinkled seed write F1 and F2 generation along with phenometic and genotic generation?

Posted by Vishal Gupta 5 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

How and where is phenolphthalein is used in daily life? and what is another name for it?

Posted by Samreen Kaur Malhi 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Preeti Dabral 4 years, 9 months ago

Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.

Solubility in other solvents: Insoluble in benzene

Chemical formula: C₂₀H₁₄O₄

Solubility in water: 400 mg/L

ANSWER

Why are mimosa pudica (Touch-me-not)leaves drop down when touched.

Posted by Himanshu Pandey 5 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Vineet Kumar 5 years, 1 month ago

It is due to turgor pressure difference between the upper and lower halves of the base of petiole (pulvinus). Lower half cells lose water and upper half cells of pulvinus become turgid due to transfer of water from lower cells.

ANSWER

Difference between biodegradable ans non biodegradable substance

Posted by Vanshika Jain 5 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Mukul Kumar 5 years, 1 month ago

Biodegradable substances are those which decompose naturally in the environment naturally and are considered beneficial for the environment. ... Non-biodegradable substances are those wastes which do not decompose naturally in the environment, causes pollution and are also harmful to the living being.

Tanishka Chaurasiya 5 years, 1 month ago

No one

Vineet Kumar 5 years, 1 month ago

Biodegradable substances are those which decompose naturally in the environment naturally and are considered beneficial for the environment while Non-biodegradable substances are those wastes which do not decompose naturally in the environment, causes pollution and are also harmful to the living being.

Vishvas Patni 5 years, 1 month ago

Adithya Dev A 5 years, 1 month ago

BIODEGRADABLE = can be broken down into simpler forms by action of decomposers, can act as a breeding spot for mosquitoes and foul smell, eg:-leather, vegetable peels, meat, etc. NON BIODEGRADABLE = cannot be broken down by any enzyme present in decomposers, can cause water and soil pollution, eg:-plastic, metal, glass, etc.

ANSWER

Why do aquatic animals breath faster

Posted by Dolly Sharma 5 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Vineet Kumar 5 years, 1 month ago

The rate of breathing in aquatic organisms is much faster than in terrestrial organisms because the amount of dissolved oxygen is fairly lower in water than air and also that aquatic organisms like the fishes obtain oxygen from water present in the dissolved state.

Aditya Sidha 5 years, 1 month ago

Aquatic animal breathe faster as they intake dissolved oxygen in water which os fairly low as compared to oxygen in air

ANSWER

List any two observation when ferrous sulphate is heated in a dry test tube?

Posted by Ujjwal Gupta 5 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Mukul Kumar 5 years, 1 month ago

1. Change in color 2. Evolution of gas having a smell of burning sulpher.

Adithya Dev A 5 years, 1 month ago

1) Initial light green colour changes into white and then to reddish brown. 2) Water droplets on the sides of test tube. 3) Crackling sound. 4) Smell of burning sulphur.