Functional isomer is not possible for -

1. Alcohols

2. Aldehydes

3. Alkyl halides

4. Cyanides

Assertion: Pent-1-ene and pent-2-ene are position isomers.

Reason: Position isomers differ in the position of a functional group or a substituent.

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

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

3.  Assertion is true but the reason is false.

4.  Assertion is false but the reason is true.

Consider the following four compounds.

(I) 

(II) 

(III) 

(IV) 

Which of the following pairs are position isomers?

1. I and II

2. II and III
3. II and IV

4. III and IV

Consider the following four compounds.

(I) 

(II) 

(III) 


(IV)

 

Consider the following pairs of compounds.

(a) II and III

(b) II and IV

(c) I and IV

(d) I and II

Which of the pairs given above are not functional group isomers?

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, c)