MCQ
Difference between two types of sulphur atoms in $Na_2S_4O_6$ will be
- ✓$5$
- B$3$
- C$2.5$
- D$6$
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$I.$ $Zn +$ conc. $HNO_3$ (hot) $\rightarrow Zn(NO_3)_2 + X + H_2O$
$II.$ $Zn +$ dil. $HNO_3$ (cold) $\rightarrow Zn(NO_3)_2 + Y + H_2O$
Compounds $X$ and $Y$ are respectively
