1
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?
A
Fe3[Fe(CN)6]2
B
Fe4[Fe(CN)6]3
C
Fe4[Fe(CN)6]2
D
Fe3[Fe(CN)6]3

Explanation

The prussian blue colour is of Fe4 [Fe(CN)6]3 ferric ferrocyanide.
2
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

What is the hybridisation state of benzyl carbonium ion?

A
sp2
B
spd2
C
sp2d
D
sp3
3
MCQ (Single Correct Answer)

NEET 2013 (Karnataka)

Arrange the following in increasing order of stability
A
5 < 4 < 3 < 1< 2
B
4 < 5 < 3 < 1 < 2
C
1 < 5 < 4 < 3 < 2
D
5 < 4 < 3 < 2 < 1

Explanation

Greater the number of e donating alkyl groups (+I effect), greater will be the stability of carbocations.
4
MCQ (Single Correct Answer)

NEET 2013

The structure of isobutyl group in an organic compound is
A
B
C
D

Explanation

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