(D) The $II A$ group precipitate (sulfides) dissolves in dilute $HNO_3$ to form metal nitrates. When $NH_4OH$ is added to the solution containing $Cu^

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(D) The $II A$ group precipitate (sulfides) dissolves in dilute $HNO_3$ to form metal nitrates. When $NH_4OH$ is added to the solution containing $Cu^{2+}$ ions,it forms a deep blue complex,tetraamminecopper$(II)$ ion. The reaction is: $Cu^{2+} + 4NH_4OH \to [Cu(NH_3)_4]^{2+} + 4H_2O$. The deep blue color is characteristic of the $[Cu(NH_3)_4]^{2+}$ complex.

Class 12 Chemistry Coordination Compounds Application of Co-ordination compounds

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The solution of $II A$ group precipitate in dilute $HNO_3$ when treated with $NH_4OH$ becomes blue because of the presence of

A
$Mg$
B
$Cd$
C
$Bi$
D
$Cu$

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

Coordination Compounds

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Application of Co-ordination compounds

Sodium thiosulphate $(Na_2S_2O_3 \cdot 5H_2O)$ is used in photography to

Easy

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Select the incorrect match.

Medium

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When potassium ferrocyanide crystals are heated with concentrated $H_2SO_4$,which of the following gases is evolved?

Easy

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Assign the correct code for Column-$I$ and Column-$II$:

Column-$I$ (Coordination compound) Column-$II$ (Central metal atom)

$(a)$ Chlorophyll $(p)$ Rhodium

$(b)$ Blood pigment $(q)$ Cobalt

$(c)$ Wilkinson catalyst $(r)$ Calcium

$(d)$ Vitamin $B_{12}$ $(s)$ Iron

$(t)$ Magnesium

Column-$I$ (Coordination compound)	Column-$II$ (Central metal atom)
$(a)$ Chlorophyll	$(p)$ Rhodium
$(b)$ Blood pigment	$(q)$ Cobalt
$(c)$ Wilkinson catalyst	$(r)$ Calcium
$(d)$ Vitamin $B_{12}$	$(s)$ Iron
	$(t)$ Magnesium

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Which of the following coordination complexes is used as an anti-cancer agent?

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The solution of $II A$ group precipitate in dilute $HNO_3$ when treated with $NH_4OH$ becomes blue because of the presence of

Similar Questions

Sodium thiosulphate $(Na_2S_2O_3 \cdot 5H_2O)$ is used in photography to

Select the incorrect match.

When potassium ferrocyanide crystals are heated with concentrated $H_2SO_4$,which of the following gases is evolved?

Assign the correct code for Column-$I$ and Column-$II$: Column-$I$ (Coordination compound) Column-$II$ (Central metal atom) $(a)$ Chlorophyll $(p)$ Rhodium $(b)$ Blood pigment $(q)$ Cobalt $(c)$ Wilkinson catalyst $(r)$ Calcium $(d)$ Vitamin $B_{12}$ $(s)$ Iron $(t)$ Magnesium

Which of the following coordination complexes is used as an anti-cancer agent?

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Assign the correct code for Column-$I$ and Column-$II$:

Column-$I$ (Coordination compound) Column-$II$ (Central metal atom)

$(a)$ Chlorophyll $(p)$ Rhodium

$(b)$ Blood pigment $(q)$ Cobalt

$(c)$ Wilkinson catalyst $(r)$ Calcium

$(d)$ Vitamin $B_{12}$ $(s)$ Iron

$(t)$ Magnesium