1
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many moles of carbon atoms are present in 3.6 kg of carbon?

A
$3.0 \times 10^2$ mole
B
$1.8 \times 10^2$ mole
C
$2.4 \times 10^2$ mole
D
$4.8 \times 10^2$ mole
2
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate enthalpy change for following reaction.

$$\mathrm{H}_2 \mathrm{C}=\mathrm{CH}_{2(\mathrm{~g})}+\mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{H}_3 \mathrm{C}-\mathrm{CH}_{3(\mathrm{~g})}$$

[The bond energy of $\mathrm{C}-\mathrm{H}, \mathrm{C}-\mathrm{C}, \mathrm{C}=\mathrm{C}$ and $\mathrm{H}-\mathrm{H}$ is $414,347,615$ and 435 kJ respectively]

A
125 kJ
B
$-$125 kJ
C
250 kJ
D
$-250 \mathrm{~kJ}$
3
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the product 'B' in the following reaction.

Ethylphenyl ketone $\xrightarrow{\mathrm{H}_2 \mathrm{~N}-\mathrm{NH}_2}$ A $\xrightarrow[\Delta]{\mathrm{KOH}, \mathrm{HO}\left(\mathrm{CH}_2\right)_2 \mathrm{OH}}$ B

A
Phenylhydrazone
B
Ethylbenzene
C
n-propylbenzene
D
Isopropylbenzene
4
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is NOT a lanthonoid element?

A
Pm
B
Er
C
Yb
D
Hf
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