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

A gas performs 0.320 kJ work on surrounding and absorbs 120 J of heat from the surrounding. Hence, change in internal energy is

A
200 J
B
120.32 J
C
$-$200 J
D
440 J
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For the elementary reaction, $3 \mathrm{H}_2(g)+\mathrm{N}_2(g) \longrightarrow 2 \mathrm{NH}_3(g)$ identify the correct relation among the following relations:

A
$\frac{-3}{2} \frac{d\left[\mathrm{H}_2(\mathrm{~g})\right]}{d t}=\frac{d\left[\mathrm{NH}_3(\mathrm{~g})\right]}{d t}$
B
$\frac{-2}{3} \frac{d\left[\mathrm{H}_2(\mathrm{~g})\right]}{d t}=\frac{d\left[\mathrm{NH}_3(\mathrm{~g})\right]}{\mathrm{dt}}$
C
$\frac{d\left[\mathrm{NH}_3(g)\right]}{d t}=\frac{-1}{3} \frac{d\left[H_2(g)\right]}{d t}$
D
$\frac{-d\left[H_2(g)\right]}{d t}=\frac{d\left[\mathrm{NH}_3(g)\right]}{d t}$
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Natalite is a mixture of

A
acetic acid and diethyl ether
B
ethyl bromide and diethyl ether
C
ethyl alcohol and dimethyl ether
D
diethyl ether and ethyl alcohol
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In which among the following compounds, oxidation number of nitrogen is +5 ?

A
$\mathrm{N}_2 \mathrm{O}$
B
$\mathrm{N}_2 \mathrm{O}_3$
C
$\mathrm{NO}_2$
D
$\mathrm{HNO}_3$
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