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

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?

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

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

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

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

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Identify the product formed in the following reaction.

$$ \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{MgBr} \xrightarrow[\text { ii) dil. HCl }]{\text { i) Dry ice/ dry ether }} \text { Product } $$

Ethanoic acid

Propanoic acid

2-Methylpropanoic acid