Assertion (A): Trans-but-2-ene has a higher boiling point than cis-but-2-ene.
Reason (R): Trans-but-2-ene is more polar than cis-but-2-ene.
  
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
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Assertion (A):  Treatment of 1,2-dibromopropane with zinc produces cyclopropane.
Reason (R):  The reaction of alkyl halides with any metal is called a substitution reaction.
 
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
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Which of the following is correct about carbon to carbon bonds?

a. The length of carbon to carbon bond increases in the order C≡C, C=C, C-C
b. The strength of the C=C bond is more than the strength of the C-C bond.
c. The carbon atoms are joined by six electrons in the  C≡C  bond.


1. b and c only

2. a and c only

3. a, b and c

4. a and b only

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
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