Q.

Reaction of acids with metals produce which gas?


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a

Nitrogen

b

Oxygen

c

Hydrogen

d

Chlorine 

answer is C.

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Detailed Solution

Reaction of acids with metals produce hydrogen gas.
When metals are reacted with an acid, especially strong acids, it forms metal chlorides, nitrates or sulphates and hydrogen gas as a product. This reaction is an example of a single displacement reaction in which anion part is rearranged to form a new product. For example, the reaction of Mg with hydrochloric acid is given as:
Mg+2HClMgCl2+H2
 
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