In the following schematic diagram for the preparationof hydrogen gas as shown in Figure 2.3, what wouldhappen if following changes are made? (a) In place ofzinc granules, same amount of zinc dust is taken in thetest tube (b) Instead of dilute sulphuric acid, dilutehydrochloric acid is taken (c) In place of zinc, copperturnings are taken (d) Sodium hydroxide is taken inplace of dilute sulphuric acid and the tube is heated.

In the following schematic diagram for the preparationof hydrogen gas

1.	In the following schematic diagram for the preparationof hydrogen gas as shown in Figure 2.3, what wouldhappen if following changes are made? (a) In place ofzinc granules, same amount of zinc dust is taken in thetest tube (b) Instead of dilute sulphuric acid, dilutehydrochloric acid is taken (c) In place of zinc, copperturnings are taken (d) Sodium hydroxide is taken inplace of dilute sulphuric acid and the tube is heated.
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