Science, asked by shamilshabil2, 1 month ago

give me the answer pls

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Answered by mahi7830
1

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Q1) which gas is produced when dilute hydrochloric acid reacts with Zinc? How did you identify that gas?

Answer 1) When dilute hydrochloric acid reacts with zinc , zinc metal is converted

to zinc chloride and hydrogen gas is evolved in the reaction.

We know it because of POP sound of Hydrogen Gas .

Q2) What are the precaution should be taken while handling chemical substances?

Answer 2) Precautions should be taken while handling chemical substances -

i) Safety glasses are to be worn whenever working with acids, bases, or any flammable materials.

ii) Keep chemical containers closed.

iii) Never use a wrong or an unmarked reagent

Q3) Pickles are not stored in metallic containers . Why?

Answer - Pickle contains acid and acid reacts with metal to produce hydrogen

gas and salt , which can be harmful for us

That's why they are stored in plastic containers.

Q4) who is the scientist named the gas 'hydrogen' Which is produced when metals reacts with acid ?

Answer - It was named by the French chemist Antoine Lavoisier.

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