Question

Concentrated hydrochloric acid is not preferred to dilute acid for reaction with Zinc in the laboratory preparation of hydrogen.Why?

Answer 1

Answer:

hcl is so concentrated that it will be a vigorous reaction resulting in combustion of formed hydrogen resulting in water vapour

Explanation:

Answer 2

Explanation:

HCL is concentrated so much that it will be vigorous reaction, which can result in combustion of hydrogen in the form of water vapour