Metal carbonates and hydrogen carbonates react with acids to give

Carbon dioxide

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Hydrogen gas

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Sulphur dioxide gas

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Carbon monoxide gas

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Solution

The correct option is A
Carbon dioxide

Explanation of correct option:
The correct option is A:
When the metal carbonates and hydrogen carbonates react with the acids, they produce salt and water and liberate the carbon dioxide gas.
$Metalcarbonate + Acid \to Salt + carbondioxide + water$
$MetalHydrogencarbonate + Acid \to Salt + carbondioxide + water$
For example, in the following reactions, the metal carbonate and hydrogen carbonates react with an acid to produce carbon dioxide.
$\underset{Z i n c C a r b o n a t e}{Z n C O_{3} (s)} + \underset{H y d r o c h l o r i c a c i d}{2 H C l (l)} \to \underset{Z i n c C h l o r i d e}{Z n C l_{2} (s)} + \underset{C a r b o n d i o x i d e}{C O_{2} (g)} + \underset{w a t e r}{H_{2} O (l)}$
$\underset{(P o t a s s i u m h y d r o g e n c a r b o n a t e)}{K H C O_{3} (s)} + \underset{(H y d r o c h l o r i c a c i d)}{H C l (a q)} \to \underset{(P o t a s s i u m C h l o r i d e)}{K C l (a q)} + \underset{(W a t e r)}{H_{2} O (l)} + \underset{(C a r b o n d i o x i d e)}{C O_{2} (g)}$
Explanation of incorrect options:
Option B:
Hydrogen is mainly produced when the metal reacts with water. The carbon dioxide is released when the metal carbonate reacts with acid.
For example, $\underset{(S o d i u m)}{2 N a (s)} + \underset{(W a t e r)}{2 H_{2} O (l)} \to \underset{(S o d i u m h y d r o x i d e)}{2 N a O H (a q)} + \underset{(H y d r o g e n)}{H_{2} (g)}$
Option C:
Sulfur dioxide is produced when the metallic sulfite reacts with dilute sulphuric acid.
For example, $\underset{(S o d i u m s u l p h i t e)}{N a_{2} S O_{3} (s)} + \underset{(H y d r o c h l o r i c a c i d)}{2 H C l (a q)} \to \underset{(S o d i u m c h l o r i d e)}{2 N a C l (a q)} + \underset{(S u l p h u r d i o x i d e)}{S O_{2} (g)} + \underset{(W a t e r)}{H_{2} O (l)}$
Option D:
Carbon monoxide is released by the metal oxalate upon heating.
For example, $\underset{(S o d i u m o x a l a t e)}{N a_{2} C_{2} O_{4} (a q)} \to \underset{(S o d i u m c a r b o n a t e)}{N a_{2} C O_{3} (s)} + \underset{(C a r b o n m o n o x i d e)}{C O (g)}$
Final Answer: Metal carbonates and hydrogen carbonates react with acids to give carbon dioxide.

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Similar questions

Acids react with metal carbonates and bicarbonates to give ______ gas

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

Q. All metal carbonates and ................. react with acids to gives corresponding salt, carbon dioxide and water.

Acetic acid reacts with carbonates or hydrogen carbonates to give corresponding salts, water and carbon dioxide.

Acids react with carbonates to give carbon dioxide as one of the products.

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