Question

From the given list of substances available in laboratory

Marble pieces, marble powder, zinc granules, sodium hydroxide, dil.

hydrochloric acid

a) Which substance will you use to prepare CO2 in less time?

b) Give the chemical equation for the reaction taking place.​

Answer 1

Answer:

1st) sodium hydroxide

2nd) don't know sorry but 1st it's totally correct actually I know only this