MCQ
Which compound forms linear polymer due to $H-$ bond
- A$H_2O$
- ✓$NH_3$
- C$HF$
- D$HCl$
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Assertion $(A)$ $:$ When Cu $(II)$ and sulphide ions are mixed, they react together extremely quickly to give a solid.
Reason $(R)$ $:$ The equilibrium constant of $Cu ^{2+}( aq )+ S ^{2-}( aq ) \rightleftharpoons \operatorname{CuS}( s )$ is high because the solubility product is low.