the deep blue colour produced on adding excess of ammonia

The deep blue colour produced on adding excess of ammonia to copper sulphate is due to presence of

A. $$C{u^{2 + }}$$

B. $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$

C. $${\left[ {Cu{{\left( {N{H_3}} \right)}_6}} \right]^{2 + }}$$

D. $${\left[ {Cu{{\left( {N{H_3}} \right)}_2}} \right]^{2 + }}$$

Answer : $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$

Solution :
$$CuS{O_4} + 4N{H_3} \to \left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]S{O_4}$$ Blue complex due to $$Cu\left( {N{H_3}} \right)_4^{2 + }$$

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. $${N_2}{O_3}$$

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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. $$\,HCl$$

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Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$

B. $$HOCl$$

C. $$HBr$$

D. $$HI$$

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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

The deep blue colour produced on adding excess of ammonia to copper sulphate is due to presence of

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

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

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

Which of the following is most stable to heat

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

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P - Block Elements

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The deep blue colour produced on adding excess of ammonia to copper sulphate is due to presence of

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

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

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

Which of the following is most stable to heat

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

Practice More Releted MCQ Question on P - Block Elements

Practice More MCQ Question on Chemistry Section

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

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P - Block Elements