Question

Choose correct option for number indicating an arrow from following figure considering the general trends only. (arrow indicates increase in characeristics)
(A) Ionization enthalpy
(B) Electronegativity
(C) Atomic radius
(D) Non-metallic character

• A. 1 - B, 2 - C, 3 - D, 4 - A
• B. 1 - D, 2 - C, 3 - A, 4 - B
• C. 1 - B, 2 - D, 3 - C, 4 - A
• D. 1 - C, 2 - A, 3 - B, 4 - D

Answer 1

The correct option is A 1 - B, 2 - C, 3 - D, 4 - A

Ionization enthalpy decreases down the group, hence, on going up the group it will increases. Hence, $A\Rightarrow 4.$

Electronegativity increases from left to right in a period and decreases on going from top to bottom in a group. Hence, $B\Rightarrow 4.$

Atomic radius decreases on moving from left to right in a period and increases as we move from top to bottom in a group. Hence $C\Rightarrow$ $1$ and $2.$

Non-metallic character increases on going from left to right across a period and generally it decreases down the group. Hence $D\Rightarrow 3.$