Check sibling questions

Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas when reacting with metals (except Mn and Mg)?

(A) H 2 SO 4

(B) HCl

(C) HNO 3

(D) All of these

 

Answer

When metals react with HNO 3 , H 2 is not liberated.

This is because HNO 3  is a strong oxidising agent . So, as soon as the hydrogen gas is formed, it is oxidised to water. 

So, the correct answer is (c) HNO 3

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo