1.

Which of the following substance on being heated will give a gas that does not turns lime water milky :-

Answer»

`LiNO_(3)`
`ZnCO_(3)`
`ZnSO_(3)`
`MgCO_(3)`

Solution :(i) `LiNO_(3) overset(Delta)to Li_(2)O +NO_(2)+O_(2)`
(ii) `ZnCO_(3) overset(Delta)to ZnO+O_(2)`
(iii) `ZnSO_(3) overset(Delta)to ZnO+SO_(2)`
(IV) `MgCO_(3) overset(Delta)to MgO +CO_(2)`
`CO_(2) & SO_(2)` gas turns lime water into milky


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