Identify the INCORRECT match.

Name	IUPAC Official Name
a. Unnilunium	(i) Mendelevium
b. Unniltrium	(ii) Lawrecium
c. Unnilhexium	(iii) Seaborgium
d. Unununnium	(iv) Darmstadtium

 

1.	(b)- (ii)	2.	(c)- (iii)
3.	(d) -(iv)	4.	(a)-  (i)

The group of elements in which the differentiating electron enters the anti penultimate
shell of atoms are called

1. p-block elements 

2. d-block elements

3. s-block elements 

4. f-block elements

Which of the following elements will have the highest electronegativity?

1. Chlorine 

2. Nitrogen 

3. Cesium 

4. Fluorine

How does electron affinity change when we move from left to right in a period in the
periodic table?

1. Generally increases

2. Generally decreases

3. Remains unchanged

4. First increases and then decreases

One mole of magnesium in the vapour state absorbed 1200 kJ mol^-1 of energy.

If the first and second ionization energies of Mg are 750 and 1450 kJ mol^-1 respectively,

the final composition of the mixture is

1. 86% Mg⁺ + 14% Mg²⁺ 

2. 36% Mg⁺ + 64% Mg²⁺ 

3. 69% Mg⁺ + 31% Mg²⁺ 

4. 31% Mg⁺ + 69% Mg²⁺ 

The atomic species that has the maximum ionization energy is : 

Ionic radii are :

(1) Inversely proportional to effective nuclear charge.

(2) Inversely proportional to square of effective nuclear charge.

(3) Directly proportional to effective nuclear charge.

(4) Directly proportional to square of effective nuclear charge.

An atom has electronic configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³ 4s² , you will place it in :

(1) V group

(2) XV group

(3) II group

(4) III group

Which of the following oxide is amphoteric in nature?

1. SnO

2. ${\mathrm{SiO}}_2$

3. ${\mathrm{GeO}}_2$

4. ${\mathrm{CO}}_2$

The increasing order of non-metallic character of the elements N, P, O, and S is: 

1. P < S < N < O

2. O < S < N < P 

3. O < N < S < P 

4. N < S < O < P