1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is correct for electrolysis of brine solution?

A
$\mathrm{O}_2$ gas is liberated at cathode
B
Sodium metal is collected at anode
C
$\mathrm{H}_2$ gas is liberated at cathode
D
$\mathrm{Cl}_2$ gas is liberated at cathode
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The number of pi-bonds present in benzoic acid molecule are

A
 5
B
4
C
3
D
6
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The elevation in boiling point of 0.25 molal aqueous solution of a substance is $\left(K_o=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$

A
0.15 K
B
0.50 K
C
0.13 K
D
2.08 K
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The combining ratios of hydrogen and oxygen in water and hydrogen peroxide are $1: 8$ and $1: 16$. Which law is illustrated in this example?

A
Law of definite proportions
B
Law of conservation of mass
C
Gay Lussac's law of combining volumes of gases
D
Law of multiple proportions
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