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. |
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. |
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