Among the following sequences, the sequence contains atomic numbers of only representative elements is/are-

(a)	3, 33, 53, 87	(b)	2, 10 ,22, 36
(c)	7, 17, 25, 37, 48	(d)	9, 35, 51, 88

Choose the correct option

1.	(a), (d)	2.	(b), (c)
3.	(c), (d)	4.	(b), (d)

An element(s) that gain one electron more readily in comparison to other elements of their group is/are-

(a) S_(g)

(b) Na_(g)

(c) O_(g)

(d) Cl_(g)

Choose the correct option

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

Correct statement(s) among the following are-

Choose the correct option

1. (a), (c), (d)

2. (a), (b), (c)

3. (a), (c),

4. (a), (d)

Given are the following sets of species:

(a) ${\mathrm{Zn}}^{2+}, {\mathrm{Ca}}^{2+}, {\mathrm{Ga}}^{3+}, {\mathrm{Al}}^{3+}$

(b) ${\mathrm{K}}^{+},\hspace{0.17em}{\mathrm{Ca}}^{2+}, {\mathrm{Sc}}^{3+},\hspace{0.17em}{\mathrm{Cl}}^{-}$

(c) ${\mathrm{P}}^{3-}, {\mathrm{S}}^{2-}, {\mathrm{Cl}}^{-}, {\mathrm{K}}^{+}$

(d) ${\mathrm{Ti}}^{4+}, \mathrm{Ar}, {\mathrm{Cr}}^{3+}, {\mathrm{V}}^{5+}$

The sets containing only isoelectronic ions among the above are:

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

In which following options of arrangement does not agree with the variation of the property indicated against it?

(a) Al³⁺<Mg²⁺<Na⁺<F^- (Increasing ionic size)

(b) B<C<N   (Increasing atomic size)

(c) I<Br<Cl (Increasing atomic size)

(d) Li<Na<K (Metallic character)

Choose the correct option

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

The term(s), that does not have a unit among the following, is/are-

(a) Electronegativity

(b) Electron gain enthalpy

(c) Ionization enthalpy

(d) Metallic character

Choose the correct option:

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

The ionic radii vary in-

Choose the correct option :

1. (a), (c)

2. (b), (c)

3. (c), (d)

4. (b), (d)

The properties among the following can be shown by the element belonging
to the 3rd period and group 13 of the periodic table.

(a) Good conductor of electricity

(b) Liquid, metallic

(c) Solid, metallic

(d) Solid, non-metallic

Choose the correct option

1. (a), (c)

2. (b), (c)

3. (c), (d)

4. (b), (d)

Among the following, the elements that can show covalency greater than 4 is/are:

(a) Be

(b) P 

(c) S

(d) B

Choose the correct option

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

Amongst the following elements whose electronic configuration are given below, the one having the highest ionisation enthalpy is:

1. $\left[\mathrm{Ne}\right]3{\mathrm{s}}^{2}3{\mathrm{p}}^1$

2. $\left[\mathrm{Ne}\right]3{\mathrm{s}}^{2}3{\mathrm{p}}^3$

3.  $\left[\mathrm{Ne}\right]3{\mathrm{s}}^{2}3{\mathrm{p}}^2$

4.  $\left[\mathrm{Ar}\right]3{\mathrm{d}}^{10}4{\mathrm{s}}^{2}4{\mathrm{p}}^3$