Chemistry
Give reasons for the following:
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
Hydrogen
50 Likes
Answer
Granulated zinc contains traces of impurities, which has a slight catalyzing effect on the reaction and speeds it up. Hence, granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
Answered By
36 Likes
Related Questions
Give balanced equations for the following conversions, 1 to 5.
- MgCl2 ⟵ HCl ⟶ FeCl2
- KAlO2 ⟵ KOH ⟶ K2ZnO2
- ZnO ⟵ H2O ⟶ Fe3O4
- CO + H2 ⟵ H2O ⟶ CO2 + H2
- NH3 ⟵ H2 ⟶ H2S
Give reasons for the following:
Nitric acid in the dilute form is not used in the laboratory preparation of hydrogen from metals.
Give reasons for the following:
Hydrogen and alkali metals of group 1 [IA] react with copper [II] oxide to give copper.
Give reasons for the following:
Hydrogen is collected by the downward displacement of water and not air even though it is lighter than air.