1
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For reaction, $$\mathrm{CO}_{(\mathrm{g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \longrightarrow \mathrm{CO}_{2(\mathrm{~g})}$$

Which of the following equations is CORRECT at constant $$\mathrm{T}$$ and $$\mathrm{P}$$ ?

A
$$\Delta \mathrm{H}<\Delta \mathrm{U}$$
B
$$\Delta \mathrm{H}>\Delta \mathrm{U}$$
C
$$\Delta \mathrm{H}=\Delta \mathrm{U}$$
D
$$\Delta \mathrm{H}=0$$
2
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the example of zero-dimensional nanostructure from following.

A
Nanotubes
B
Fibres
C
Thin films
D
Quantum dots
3
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is $$\mathrm{pH}$$ of solution containing $$50 \mathrm{~mL}$$ each of $$0.1 \mathrm{~M}$$ sodium acetate and $$0.01 \mathrm{~M}$$ acetic acid? $$\left(\mathrm{pK}_{\mathrm{a}} \mathrm{CH}_3 \mathrm{COOH}=4.50\right)$$

A
2.5
B
3.5
C
4.5
D
5.5
4
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate amount of methane formed by liberation of $$149.6 \mathrm{~kJ}$$ of heat using following equation.

$$\mathrm{C}_{(\mathrm{s})}+2 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{CH}_{4(\mathrm{~g})} \quad \Delta \mathrm{H}=-74.8 \mathrm{~kJ} / \mathrm{mol}$$

A
16 g
B
24 g
C
32 g
D
48 g
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