InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
How will you distinguish between (i) `Na_(2)CO_(3)` and `NaHCO_(3)` and (ii) `LiNO_(3)` and `KNO_(3)` ? |
|
Answer» (i) `NaHCO_(3)` on heating decomposes to produce `CO_(2)` gas which turns lime water milky `2 NaHCO_(3) overset(Delta)(to) Na_(2)CO_(3) + CO_(2) + H_(2)O` `Na_(2)CO_(3)` , however , is stable to heat . (ii) `LiNO_(3)` on heating gives reddish brown vapours of `NO_(2)` whereas `KNO_(3)` on decomposition gives colourless `O_(2) ` gas . `4 LiNO_(3) overset(Delta)(to) 2 Li_(2)O + 4NO_(2) + O_(2) " " , 2 KNO_(3) overset(Delta)(to) 2 KNO_(2) + O_(2)` |
|