In a homologous se cohols, the formula for the seco

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Q.
Assertion: In a homologous series of alcohols, the formula for the second member is $C_{2} H_{5} O H$ and the third member is $C_{3} H_{7} O H$ .

Reason: The difference between the molecular masses of the two consecutive members of a homologous series is 144.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct, but reason is not the correct explanation of assertion.

3 Assertion is true, but reason is false.

4 Assertion is false, but reason is true.

Ans.
(3)
In homologous series, two consecutive members differ by $— C H_{2}$ and differ in molecular masses by 14. Thus, assertion is true but reason is false.

Solution

Q.
Assertion: In a homologous series of alcohols, the formula for the second member is $C_{2} H_{5} O H$ and the third member is $C_{3} H_{7} O H$ .

Reason: The difference between the molecular masses of the two consecutive members of a homologous series is 144.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct, but reason is not the correct explanation of assertion.

3 Assertion is true, but reason is false.

4 Assertion is false, but reason is true.

Ans.
(3)
In homologous series, two consecutive members differ by $— C H_{2}$ and differ in molecular masses by 14. Thus, assertion is true but reason is false.

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Solution

Q. Assertion: In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH. Reason: The difference between the molecular masses of the two consecutive members of a homologous series is 144.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct, but reason is not the correct explanation of assertion.

3 Assertion is true, but reason is false.

4 Assertion is false, but reason is true.

Ans. (3) In homologous series, two consecutive members differ by —CH2 and differ in molecular masses by 14. Thus, assertion is true but reason is false.

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Q.
Assertion: In a homologous series of alcohols, the formula for the second member is $C_{2} H_{5} O H$ and the third member is $C_{3} H_{7} O H$ .

Reason: The difference between the molecular masses of the two consecutive members of a homologous series is 144.

Ans.
(3)
In homologous series, two consecutive members differ by $— C H_{2}$ and differ in molecular masses by 14. Thus, assertion is true but reason is false.