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The product A is :

(1)
(2)
(3)
(4)

The major end product of the following reaction is

1.
2.
3.
4.

Z

Carbanions initiate:
(1) addition reactions
(2) substitution reaction
(3) both (1) and (2)
(4) none of these

Ease of abstraction of hydrogen is greater when attached to:
(1) 1$°$ carbon
(2) 2$°$ carbon
(3) 3$°$carbon
(4) neo carbon

The formation of cyanohydrin from a ketone is an example of:
(1) electrophilic addition
(2) nucleophilic addition
(3) nucleophilic substitution
(4) electrophilic substitution

Arrange the reactivity of alcohols in decreasing order for E1 elimination reaction:

I
II
III
IV

Select the correct answer from the codes given below :
Codes :
1. III > II > IV > I
2. II > III > IV > I
3. II > III > I > IV
4. III > II > I > IV

The product of which reaction will show geometrical isomerism?
1. 
2. 
3. 
4. 

Which hydrocarbon is most acidic?

The double bond in the above-mentioned compound that accepts proton $\left({\mathrm{H}}^{+}\right)$ fastest is:

The hybridised state of C in $\stackrel{\oplus }{\mathrm{C}}{H}_5$ is 
1. $\mathrm{sp}$
2. ${\mathrm{sp}}^2$
3. ${\mathrm{sp}}^3$
4. ${\mathrm{sp}}^3\mathrm{d}$

Number of $\sigma$-p conjugation in the given compound is:
              
1. 4
2. 6
3. 7
4. 8

Compare the bond lengths of the indicated bonds in the given compound:
                      
1. a > b
2. a < b
3. a = b
4. Cannot be predicted

Which of the following aromatic compounds is the most stable ?
1. 
2. 
3. 
4.