MHT CET 2025 26th April Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

What is the value of spin only magnetic moment for $\mathrm{Cu}^{2+}$ in BM?

2.84

3.87

1.73

0.0

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Identify role of glycerol in following reaction.

$$ 2 \mathrm{H}_2 \mathrm{O}_{2(\ell)} \xrightarrow{\text { glycerol }} 2 \mathrm{H}_2 \mathrm{O}_{(\ell)}+\mathrm{O}_{2(g)} $$

Homogeneous catalyst

Inhibitor

Promoter

Heterogeneous catalyst

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following is a Fittig reaction?

$$ \begin{aligned} \mathrm{C}_6 \mathrm{H}_5 \mathrm{Br}+\mathrm{CH}_3-\mathrm{Br}+2 \mathrm{Na} \xrightarrow[\text { ether }]{\text { dry }} \mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_3+2 \mathrm{NaBr} \end{aligned} $$

$$ \begin{aligned} 2 \mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}+2 \mathrm{Na} \xrightarrow[\text { ether }]{\text { dr }} & \mathrm{C}_2 \mathrm{H}_5-\mathrm{C}_2 \mathrm{H}_5+2 \mathrm{NaBr} \end{aligned} $$

$$ 2 \mathrm{CH}_3 \mathrm{Br}+2 \mathrm{Na} \xrightarrow[\text { ether }]{\text { dry }} $$$$ \,\,\mathrm{CH}_3-\mathrm{CH}_3+2 \mathrm{NaBr} $$

$$ \begin{aligned} 2 \mathrm{C}_6 \mathrm{H}_5 \mathrm{Br}+2 \mathrm{Na} \xrightarrow[\text { ether }]{\text { dry }} & \mathrm{C}_6 \mathrm{H}_5-\mathrm{C}_6 \mathrm{H}_5+2 \mathrm{NaBr} \end{aligned} $$

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

The slope of a graph $\log [A]_1$ versus ' $t$ ' for first order reaction is $-2.5 \times 10^{-3} \mathrm{~s}^{-1}$. Find rate constant of the reaction?

$1.263 \times 10^{-3} \mathrm{~s}^{-1}$

$3.471 \times 10^{-3} \mathrm{~s}^{-1}$

$5.757 \times 10^{-3} \mathrm{~s}^{-1}$

$8.125 \times 10^{-3} \mathrm{~s}^{-1}$

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