English Medium कक्षा १० - CBSE Question Bank Solutions

Write the name and structural formula of the compound obtained when ethanol is heated at 443 K with excess of conc. H₂SO₄. Also write chemical equation for the reaction stating the role of conc. H₂SO₄ in it.

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

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

Write the molecular formula of the 2^nd and the 3^rd member of the homologous series whose first member is methane.

Write the molecular formula of ethanol.

The next homologue of C₂H₅OH is ______.

The next higher homologue of ethane is ______.

The functional group present in ethanol is ______.

Organic compounds having \[\begin{array}{cc}
\ce{O}\phantom{.....}\\
||\phantom{.....}\\
\ce{- C - OH}\\
\end{array}\] functional group are known as ______.

Match the formulae in group A with appropriate names from group B:

Group A: CH₃COOH, CH₃CHO, CH₃OH

Group B: Ethanol, Methanol, Ethanal, Ethanoic acid

Give one example of the compound having the following functional group:

Alcohol group

What is the molecular formula and structure of the alcohol which can be thought to be derived from pentane?

Write the name of the following functional group:

–COOH

What is meant by a functional group? Explain with an example.

Draw the structure for the following compound:

Ethanal

Draw the structure for the following compound:

Propanal

Draw the structure for the following compound:

Butanal

Draw the structure for the following compound:

Pentanal

Three organic compounds A, B and C have the following molecular formulae:

1. C₄H₈O₂
2. CH₁₀O
3. С₄H₈O

1. Which compound contains an alcohol group? Write its name and structural formula.
2. Which compound contains a carboxyl group? Write its name and structural formula.
3. Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.