Match List-I with List-II
List-I List-II Number of carbon atoms Number of structural isomers (A). $C_4H_{10}$ (I). 2 (B). $C_5H_{12}$ (II). 3 (C). $C_6H_{14}$ (III). 5 (D). $C_7H_{16}$ (IV). 9
Choose the correct answer from the options given below:
To solve this matching question, we need to understand the structural isomers of alkanes for each given molecular formula. Structural isomerism occurs when molecules have the same molecular formula but different structural arrangements.
Let's analyze each given alkane:
- For \(C_4H_{10}\):
- This molecular formula corresponds to butane and its isomers.
- Butane has 2 structural isomers: normal butane (n-butane) and isobutane (methylpropane).
- Hence, the number of structural isomers for \(C_4H_{10}\) is 2.
- For \(C_5H_{12}\):
- This molecular formula corresponds to pentane and its isomers.
- Pentane has 3 structural isomers: normal pentane, isopentane (methylbutane), and neopentane (dimethylpropane).
- Hence, the number of structural isomers for \(C_5H_{12}\) is 3.
- For \(C_6H_{14}\):
- This molecular formula corresponds to hexane and its isomers.
- Hexane has 5 structural isomers: normal hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, and 2,3-dimethylbutane.
- Hence, the number of structural isomers for \(C_6H_{14}\) is 5.
- For \(C_7H_{16}\):
- This molecular formula corresponds to heptane and its isomers.
- Heptane has 9 structural isomers, including normal heptane, 2-methylhexane, 3-methylhexane, 2,2-dimethylpentane, 2,3-dimethylpentane, 2,4-dimethylpentane, 3,3-dimethylpentane, 3-ethylpentane, and 2,2,3-trimethylbutane.
- Hence, the number of structural isomers for \(C_7H_{16}\) is 9.
Now, we can match the numbers of carbon atoms and structural isomers:
| List-I | List-II |
| (A). \(C_4H_{10}\) | (I). 2 |
| (B). \(C_5H_{12}\) | (II). 3 |
| (C). \(C_6H_{14}\) | (III). 5 |
| (D). \(C_7H_{16}\) | (IV). 9 |
Thus, the correct matching is: (A) - (I), (B) - (II), (C) - (III), (D) - (IV).
Hence, the correct answer is:
(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
Important Questions from Chemistry (CUET PG) Mixed
The final product (P) is
Consider the following statements with respect to citral
(A). Geranial and Neral are geometrical isomers of citral.
(B). It forms geranic acid on heating with potassium hydrogen sulphate.
(C). It gives 6-methylhept-5-en-2-one on treating with potassium carbonate.
(D). On oxidation with silver oxide it yields Laevulic acid.
Choose the correct answer from the options given below:Which correct sequence of reactions are applied to achieve the following transformation?
Above conversion is carried out using
The final product (D) in the above conversion is
