Equal pieces of zinc granules are dropped in four test tubes. Following substances are poured in all the four test tubes. The reaction will be vigorous with
  1. CH3COOH
  2. HCl
  3. sodium bicarbonate solution
  4. lemon juice.
  5. AcademicChemistryNCERTClass 10

    Correct Answer: (b) HCl

    Explanation: Strong adds like HCl react vigorously with active metals like Zn form metal salt and evolve H2 gas.

    $Zn(s) + HCl(aq) \rightarrow ZnCl_2(aq) + H_2$

    Updated on 10-Oct-2022 12:46:41