1
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the reaction, $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCH}_3 \xrightarrow[\mathrm{Zn}-\mathrm{Hg} / \text { conc. } \mathrm{HCl}]{[\mathrm{H}]} X,X$ is

A
toluene
B
methyl benzene
C
benzylalcohol
D
ethyl benzene
2
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the percentage of carbon in urea? (Atomic mass $C=12, H=1, N=14, O=16$)

A
$20 \%$
B
$26.6 \%$
C
$6.67 \%$
D
$46.0 \%$
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$\alpha$ - butylene when subjected to hydroboration oxidation reaction, yields

A
iso-butyl alcohol
B
sec-butyl alcohol
C
$n$-butyl alcohol
D
tert-butyl alcohol
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate van't Hoff-factor for 0.2 m aqueous solution of KCl which freezes at $-0.680^{\circ} \mathrm{C}$. $\left(K_f=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$

A
3.72
B
1.83
C
6.8
D
1.86
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