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Electronic Configuration of d- Block

Nitrate can b...

Question

Nitrate can be converted into metal oxide on heating in case of :

A

Li

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B

Na

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C

both (a) and (b)

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D

None of these

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Solution

The correct option is A Li
Reaction on heating:
$2 L i N O_{3} \to L i_{2} O + 2 N O_{2} + \frac{1}{2} O_{2}$
$M g (N O_{3})_{2} \to M g O + 2 N O_{2} + \frac{1}{2} O_{2}$
$2 N a N O_{3} \to 2 N a N O_{2} + O_{2}$

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Q. Among the nitrate of alkali metals which one can be decomposed into its oxide on strong heating?

Q. Name: [5 MARKS]
(a) a nitrate of metal which on heating does not give nitrogen dioxide.
(b) a nitrate which on heating leaves no residue behind.
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(d) a metal nitrate which on heating is changed into metal.
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Name :

(a) a nitrate of metal which on heating does not give nitrogen dioxide.

(b) a nitrate which on heating leaves no residue behind.

(c) a metal nitrate which on heating is changed into metal oxide.

(d) a metal nitrate which on heating is changed into metal.

(e) a solution which absorbs nitric oxide.

(f) the oxide of nitrogen which turns brown on exposure to air. How is it prepared ?

Q. A metal nitrate

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Q. 2.75 g of cupric oxide was reduced by heating in a current of hydrogen and the weight of copper that remained was 2.196 g. Another experiment, 2.358 g of copper was dissolved in nitric acid and the resulting copper nitrate converted into cupric oxide by ignition. The weight of cupric oxide formed was 2.952 g. Show that these results illustrate law of constant composition.
Hint : In first case % of oygen in

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