question_answer 70)

  What happens when zinc granules are treated with dilute solution of ,  Ha, HN03, and, also write the chemical equations, if reaction occurs?

Answer:

  The reactions of zinc granules with various reagents are as follows (i) Dilute (ii) Dilute HCl (iii) Dilute HNO3 is an oxidising acid therefore, its reaction with a metal(e.g., Zn) is different than other dilute acids. (iv) NaCl solution Reaction does not take place (v) NaOH solution This hydrogen gas is evolved with, HCl and NaOH, nitrous oxide gas is evolved with dilute HNO3 and no reaction takes place with NaCI solution.