Question

Of the interhalogen $$A{X_3}$$  compounds, $$Cl{F_3}$$  is most reactive but $$Br{F_3}$$  has higher conductance in liquid state. This is because

A. $$Br{F_3}$$  has higher molecular mass.
B. $$Cl{F_3}$$  is more volatile.
C. $$Br{F_3}$$  dissociates into $$BrF_2^ + $$  and $$BrF_4^ - $$  most easily.  
D. Electrical conductance does not depend on concentration.
Answer :   $$Br{F_3}$$  dissociates into $$BrF_2^ + $$  and $$BrF_4^ - $$  most easily.
Solution :
In liquid state $$Br{F_3}$$  dissociates into $$BrF_2^ + $$  and $$BrF_4^ - \,ions$$   most easily.

Releted MCQ Question on
Inorganic Chemistry >> P - Block Elements

Releted Question 1

The reddish brown coloured gas formed when nitric oxide is oxidised by air is

A. $${N_2}{O_5}$$
B. $${N_2}{O_4}$$
C. $$N{O_2}$$
D. $${N_2}{O_3}$$
Releted Question 2

The temporary hardness of water due to calcium carbonate can be removed by adding —

A. $$CaC{O_3}$$
B. $$Ca{\left( {OH} \right)_2}\,$$
C. $$CaC{l_2}$$
D. $$\,HCl$$
Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$
B. $$HOCl$$
C. $$HBr$$
D. $$HI$$
Releted Question 4

White $$P$$ reacts with caustic soda. The products are $$P{H_3}$$ and $$Na{H_2}P{O_2}.$$   This reaction is an example of

A. Oxidation
B. Reduction
C. oxidation and reduction
D. Neutralisation

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P - Block Elements


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