In which of the following pairs, both the species are not isostructural?

1. \(\mathrm{SiCl}_4, \mathrm{PCl}_4^{+}\)
2. Diamond, silicon carbide
3. \(\mathrm{NH}_3, \mathrm{PH}_3\)
4. \(\mathrm{XeF}_4, \mathrm{XeO}_4\)
 

The esters that get hydrolyzed most easily under alkaline conditions is?

1.
2.
3.
4.

The reaction of phenol with chloroform in the presence of dilute sodium hydroxide finally introduces a functional group X. The X is:

1. -CH₂Cl

2. -COOH

3. -CHCl₂

4. -CHO

Alkyl halides prepared by among the following reaction(s) is/are:
 

The correct statement about the S_N1 reaction is:

Which of the following is not the product of dehydration of?

1.		2.
3.		4.

A compound that releases CO₂ most easily upon heating is?
1. $K_{2}C{O}_3$
2. $N{a}_{2}C{O}_3$
3. $MgC{O}_3$
4. $CaC{O}_3$

HCl with an alkene X reacts in accordance with Markovnikov’s rule to give 1-Chloro-1-methylcyclohexane. The structure of alkene (X) is:

1.		2.
3.	(1) and (2)	4.

The number of possible isomers for the complex $\left[\mathrm{Co}{\left(\mathrm{en}\right)}_2{\mathrm{Cl}}_2\right]Cl$ will be (en=ethylenediamine):

1. 2

2. 1

3. 3

4. 4

A gas such as carbon monoxide would be most likely to obey the ideal gas law at?
1. High temperature and low pressure
2. Low temperature and high pressure
3. High temperature and high pressure
4. Low temperature and low pressure