Question

Anhydrous $$AlC{l_3}$$  fumes in air. What is the reason for it?

A. It is hygroscopic in nature.
B. It gives out chlorine when exposed to air.
C. It is hydrolysed in moist air giving out fumes of $$HCl.$$  
D. It loses water when exposed to moist air.
Answer :   It is hydrolysed in moist air giving out fumes of $$HCl.$$
Solution :
Anhydrous $$AlC{l_3}$$  is hydrolysed in moist air and fumes of $$HCl$$  are given out.

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. $${N_2}{O_3}$$
View Answer
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. $$\,HCl$$
View Answer
Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$
B. $$HOCl$$
C. $$HBr$$
D. $$HI$$
View Answer
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
View Answer

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P - Block Elements

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