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  • 1(current)
Q. No.
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 |
 77%
Level 2: 60%+
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Assertion (A): The boiling point of neopentane is less than that of isopentane 
Reason (R): The higher the branching, the lower the boiling point of a compound.
 
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 |
 89%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.
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 |
 60%
Level 2: 60%+
Hints
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Given below are two statements:
Statement I: Treatment of 1,2-dibromopropane with zinc produces cyclopropane.
Statement II: The reaction of alkyl halides with any metal is called a substitution reaction.
 
1. Statement I is incorrect and Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Statement I is correct and Statement II is incorrect.
4. Both Statement I and Statement II are incorrect.
Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 55%
Level 3: 35%-60%
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