Chemistry | TS EAMCET 2019 | Discussion Page

Name the gaseous products from the following A and B reactions respectively.

A. Hydrochloric acid is added to sodium sulphide

B.Conc. sulphuric acid is added to a mixture of sodium chloride and manganese dioxide

The correct answer is

A) $Cl_{2},Cl_{2}$

B) $H_{2},HCl$

C) $H_{2}S,O_{2}$

D) $H_{2}S,Cl_{2}$

Option D

(A) . when hydrochloric acid reacts with sodium sulphide, hydrogen sulphide gas and sodium chloride are produced.

$2HCl(aq)+Na_{2}S(aq)$ $\rightarrow H_{2}S(g)+2Nacl$

(B) Maganese oxide react with conc. sulphuric acid and sodium chlorode to produce maganese sulphate, chlorine , sodium sulphate and water

$MnO_{2}+2NaCl+2H_{2}SO_{4}\rightarrow MnSO_{4}+Cl_{2}(g)+Na_{2}SO_{4}+2H_{2}O$

hence, option (d) is the correct answer

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