Question

Potassium and calcium
are not used
for reaction
with dillute hydrochloric acid or dillute sulphuric acid in
labaratory preparation of hydrogen.Give reason?
​

Answer 1

Answer:

yes

Explanation:

because it forms vigorous reaction.

K floats

Ca sinks

Answer 2

Answer:

Since both sodium and potassium are very reactive metals therefore when their reaction takes place with dilute hydrochloric acid or dilute sulphuric acid, they react vigorously and releases large amount of heat, which can be harmful.

Explanation:

Potassium and sodium are placed at the top of the reactivity series. They are highly reactive towards dilute sulphuric or hydrochloric acid. They react violently with dilute acids and cause explosions.

I hope this will helps you plz mark as brainliest answer and also like my answer plz.