MCQ
Select the incorrect pair
- ACellulose $=$ Polymer of $\beta -D-$ Glucose
- ✓Sucrose $= \beta -D-$ Glucose and $\alpha -D-$ Fructose
- CLactose $= \beta -D-$ Galactose and $\beta -D-$ Glucose
- DStarch $=$ Polymer of $\alpha -D-$ Glucose
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(Molecular wight of $HA= 60, \,d_{solution} = 1\,gm/ml$)
$I.$ $Zn +$ 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