1
MCQ (Single Correct Answer)

AIPMT 2009

The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon,


is in the following sequence
A
sp3, sp2, sp2 and sp
B
sp, sp2, sp2 and sp3
C
sp, sp2, sp3 and sp2
D
sp, sp3, sp2 and sp3

Explanation



$$ \therefore $$ C2 - sp, C3 - sp3, C5 - sp2 and C6 - sp3
2
MCQ (Single Correct Answer)

AIPMT 2008

In the hydrocarbon,

The state of hybridization of carbons 1, 3 and 5 are in the following sequence
A
sp, sp2, sp3
B
sp3, sp2, sp
C
sp2, sp, sp3
D
sp, sp3, sp2

Explanation



The state of hybridization of carbons 1, 3 and 5 are sp, sp3 and sp2 respectively.
3
MCQ (Single Correct Answer)

AIPMT 2008


A (predominantly) is
A
B
C
D

Explanation


We know that in case of an unsymmetrical alkene there is the possibility of forming two products. In such cases the formation of major product is decided on the basis of Markownikoffs rule which is rationalized in terms of stability of the carbocation. Also 3o carbocation is more stable than 2o carbocation and 2o carbocation is more stable than 1o carbocation.
4
MCQ (Single Correct Answer)

AIPMT 2007

Which of the compound with molecular formula C5H10 yields acetone on ozonolysis?
A
3-Methyl- 1 -butene
B
Cyclopentane
C
2-Methyl-1-butene
D
2-Methyl-2-butene

Explanation



So, 2-methyl-2-butene yields acetone on ozonolysis.

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