Metal A does not react with nitric acid but its nitrate salt undergoes thermal decomposition to yield metal oxide. Identify metal A from the options given below.

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Solution

The correct option is B Cu

The metals which are above hydrogen in the reactivity series, will react with nitric acid.

From the given options Cu, Au, Ag are below hydrogen. So they won’t react with nitric acid.

Copper nitrate undergoes thermal decomposition to yield metal oxide.

The balanced equation is: $2 C u {(N O_{3})}_{2} (s) b l u e h e a t - \to 2 C u O b l a c k (s) + 4 N O_{2} (g) + O_{2} (g)$

Therefore, the correct option is (D) Cu.

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Similar questions

Question 24.
Which of the following statements is not correct ?

(a) All metal carbonates react with acid to give a salt, water and carbon dioxide
(b) All metal oxides react with water to give salt and acid
(c) Some metals react with acids to give salt and hydrogen
(d) Some non-metal oxides react with water to form an acid

Name :

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

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

(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 non-metal X reacts with concentrated nitric acid to form carbon dioxide, water, and nitrogen dioxide. Identify X from the options given below.

Q. A metal X reacts with zinc chloride to form metal chloride and zinc. The oxide of metal X reacts with both hydrochloric acid and sodium hydroxide to produce salt and water. Identify the metal X.

[0.8 mark]

A nitrate which does not produce nitrogen dioxide on heating.

A nitrate which does not leave black residue on heating

Dilute nitric acid is considered as a typical acid but not so in its reaction with metals

A metallic nitate that decripitates on heating

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Metal A does not react with nitric acid but its nitrate salt undergoes thermal decomposition to yield metal oxide. Identify metal A from the options given below. ​

Metal A does not react with nitric acid but its nitrate salt undergoes thermal decomposition to yield metal oxide. Identify metal A from the options given below.