Question

(i) Consider the following processes and identify  the gas evolved in each of the given (a) Crushed iron filings and sulphur powder  are mixed with dilute hydrochloric acid and  a mixture is prepared (b) Crushed iron filings and sulphur powder  are mixed and heated strongly then dilute  hydrochloric acid is added to the obtained  mixture
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Answer 1

Answer:(a) the gas evolved is hydrogen

(b)the gas evolved is hydrogen sulfide.

Explanation:

Answer 2

The gas that is liberated in the following process are

(a) Crushed iron filings and sulphur powder   are mixed with dilute hydrochloric acid and   a mixture is prepared - hydrogen

 (b) Crushed iron filings and sulphur powder   are mixed and heated strongly then dilute   hydrochloric acid is added to the obtained   mixture- hydrogen sulphide

Explanation:

• iron reacts with sulphur powder to form iron sulphide. Then when iron sulphide is mixed with hydrochloric acid then there is formation of hydrogen sulfide. Hydrogen sulphide is a toxic gas which has a rotten egg smell. Iron and sulphur powder when mixed forms iron sulphide which when reacts with hydrochloric acid reacts only hydrogen gas.

To know more,

A vessel contain 1.7g NH3 gas and 5.1g H2S gas. The value of .

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