Q. As per IUPAC nomenclature, the name of the complex $\left[Co\right(H_{2}O{)}_4\left(N{H}_3{)}_2\right]C{l}_3$ is:

1. Diamminetetraaquacobalt (II) chloride
2. Diamminetetraaquacobalt (III) chloride
3. Tetraaquadiamminecobalt (III) chloride
4. Tetraaquadiamminecobalt (II) chloride

Q. The number of aldol reaction(s) that occurs in the given transformation is :

1. 1
2. 2
3. 3
4. 4

Q. A compound $M_p{X}_q$ has cubic-close packing (c.c.p.) arrangement of $X$. Its unit-cell structure is shown below. The empirical formula of the compound is:

1. $MX$
2. $M{X}_2$
3. $M_{2}X$
4. $M_5{X}_{14}$

Q. The kinetic energy of an electron in the second Bohr's orbit of a hydrogen atom is:
[$a_0$ is Bohr's radius]

1. $\frac{h^2}{4{\pi }^{2}m{a}_0^2}$
2. $\frac{h^2}{16{\pi }^{2}m{a}_0^2}$
3. $\frac{h^2}{32{\pi }^{2}m{a}_0^2}$
4. $\frac{h^2}{64{\pi }^{2}m{a}_0^2}$

Q. In allene ($C_3{H}_4$), the type(s) of hybridisation of the carbon atoms is(are):

1. $sp$ and $s{p}^2$
2. only $s{p}^2$
3. $sp$ and $s{p}^3$
4. $s{p}^2$ and $s{p}^3$

Q. The number of optically active products obtained from the complete ozonolysis of the given compound are:

1. 0
2. 1
3. 4
4. 2

Q. Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?

1. $HN{O}_3,NO,N_2,N{H}_{4}Cl$
2. $HN{O}_3,NO,N{H}_{4}Cl,N_2$
3. $HN{O}_3,N{H}_{4}Cl,NO,N_2$
4. $NO,HN{O}_3,N{H}_{4}Cl,N_2$

Q. The colour of light absorbed by an aqueous solution of $CuS{O}_4$ is :

1. yellow
2. orange-red
3. violet
4. blue-green

Q. For one mole of a Van der Waals gas when b = 0 and T = 300 K, the $PV$ vs $\frac{1}{V}$ plot is shown above. The value of the Van der Waals constant a $(atm.L^2.mo{l}^{-2})$ is

1. 1
2. 4.5
3. 1.5
4. 3

Q. The carboxyl functional group ($-COOH$) is present in:

1. ascorbic acid
2. picric acid
3. barbituric acid
4. aspirin