English Medium कक्षा १० - CBSE Question Bank Solutions

The number of carbon atoms in the organic compound named as 2,2-dimethylpropane is ______.

The pair of elements which exhibits the property of catenation is ______.

The hydrocarbon which has alternate single and double bonds arranged in the form of a ring is ______.

Two organic compounds A and B have the same molecular formula C₆H₁₂. Write the names and structural formulae:

1. If A is a cyclic compound.
2. If B is an open chain compound.
3. Which compound contains single bonds as well as a double bond?
4. Which compound contains only single bonds?

Two organic compounds A and B have the same molecular formula C₆H₁₂. Write the names and structural formulae:

 if B is an open chain compound

Two organic compounds A and B have the same molecular formula C₆H₁₂. Write the names and structural formulae:

Which compound contains single bonds as well as a double bond?

Two organic compounds A and B have the same molecular formula C₆H₁₂. Write the names and structural formulae:

Which compound contains only single bonds?

The solid element A exhibits the property of catenation. It is also present in the form of a gas B in the air which is utilised by plants in photosynthesis. An allotrope C of this element is used in glass cutters.
(a) What is element A?
(b) What is the gas B?
(c) Name the allotrope C.
(d) State another use of allotrope C (other than in glass cutters).
(e) Name another allotrope of element A which exists as spherical molecules.
(f) Name a yet another allotrope of element A which conduct electricity.

You are given the following molecular formulae of some hydrocarbons:

C₅H₈; C₇H₁₄; C₆H₆; C₅H₁₀; C₇H₁₂; C₆H₁₂

1. Which formula represents cyclohexane as well as hexene?
2. Which formula represents benzene?
3. Which three formulae represent open chain unsaturated hydrocarbons having double bonds?
4. Which two formulae represent unsaturated hydrocarbons having triple bonds?
5. Which three formulae can represent cyclic hydrocarbons?

You are given the following molecular formulae of some hydrocarbons:

Which formula represents benzene?

You are given the following molecular formulae of some hydrocarbons:
C₅H₈; C₇H₁₄; C₆H₆; C₅H₁₀; C₇H₁₂; C₆H₁₂

Which three formulae represent open chain unsaturated hydrocarbons having double bonds?

You are given the following molecular formulae of some hydrocarbons:
C₅H₈; C₇H₁₄; C₆H₆; C₅H₁₀; C₇H₁₂; C₆H₁₂

Which three formulae can represent cyclic hydrocarbons?

What is the molecular formula and structural formula of a cyclic hydrocarbon whose one molecule contains 8 hydrogen atoms?

Name the functional group which always occurs in the middle of a carbon chain.

The functional group which always occurs in the middle of a carbon chain is ______.

The molecular formulae of some organic compounds are given below. Which of these compounds contains an aldehyde group?

Three organic compounds A, B and C have the following molecular formulae:  C₄H₈O

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.

Draw two possible isomers of the compound with molecular formula C₃H₆O and write their names.

Give the electron dot structures of the above two compounds.

Depletion of ozone in the ozone layer is a cause for our worry. Why?