Identify A in the given chemical reaction,

1. 

2. 

3. 

4. 

The major aromatic product C in the following reaction sequence will be :

1. 
2. 
3. 
4. 

The correct match between Item-I (starting material)  and Item-II (reagent) for the preparation of benzaldehyde is :

Options:

An organic compound neither reacts with neutral ferric chloride solution nor with Fehling solution. It however, reacts with Grignard reagent and gives a positive iodoform test. The compound is:

1.		2.
3.		4.

In the given transformation, which of the following is the most appropriate reagent ?

1. Zn – Hg/HCl

2. Na, Liq. NH₃

3. NaBH₄

4. ${\mathrm{NH}}_2{\mathrm{NH}}_2,\stackrel{\ominus }{\mathrm{O}H}$

Which of the following reagent is suitable for the preparation of the product in the above reaction?

1. $\begin{array}{l}{\mathrm{NaBH}}_4\end{array}$

2. $\begin{array}{l}{\mathrm{NH}}_2-{\mathrm{NH}}_2/{\mathrm{C}}_2{\mathrm{H}}_5\stackrel{\mathrm{\Theta }}{\mathrm{O}}\mathrm{Na}\end{array}$

3. $\mathrm{Ni}/{\mathrm{H}}_2$

4. $\mathrm{Red}<mspace\; width="1em"></mspace>P+{\mathrm{Cl}}_2$