NCERT solutions for Science [English] Class 10 chapter 4 - Carbon and its Compounds [Latest edition]

Ethane, with the molecular formula C₂H₆ has ______.

Butanone is a four-carbon compound with the functional group:

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that ______.

Explain the nature of the covalent bond using the bond formation in CH₃Cl.

Draw the electron dot structures for ethanoic acid.

Draw the electron dot structures for H₂S.

Draw the electron dot structures for propanone.

Draw the electron dot structures for F_2.

What is a homologous series? Explain with an example.

How can ethanol and ethanoic acid be differentiated on the basis of their physical properties?

How can ethanol and ethanoic acid be differentiated on the basis of their chemical properties?

Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?

Why are carbon and its compounds used as fuels for most applications?

Explain the formation of scum when hard water is treated with soap.

What change will you observe if you test soap with litmus paper (red and blue)?

What is hydrogenation?

Explain hydrogenation with the help of a chemical equation. State the role of this reaction in industry.

Which of the following hydrocarbons undergo addition reactions:
C_2, H₆, C₃H₈, C₃H₆, C₂H₂ and CH₄.

Give a test that can be used to differentiate chemically between butter and cooking oil.

Describe in brief the cleansing action of soap.

What would be the electron dot structure of carbon dioxide which has the formula CO₂?

What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form of a ring.)

 How many structural isomers can you draw for pentane?

What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?

What will be the formula and electron dot structure of cyclopentane?

Draw the structures for Ethanoic acid.

Draw the structures for Butanone

Draw the structures for Hexanal.

How would you name the following compounds?

\[\ce{CH3 - CH2 - Br}\]

How would you name the following compound?

\begin{array}{cc}\\
\ce{H}\\
|\\
\ce{H - C = O}
\end{array}

How would you name the following compound?

\begin{array}{cc}\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.........}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{.........}\\
\ce{H - C - C - C - C - C ≡ C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{.........}\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.........}\\
\end{array}

A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?

How would you distinguish experimentally between an alcohol and a carboxylic acid?

What are oxidising agents?

Would you be able to check if water is hard by using a detergent?

People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?