MHT CET 2026 19th April Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2026 19th April Evening Shift

MCQ (Single Correct Answer)

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Half life of a first order reaction is $900$ second. If initial concentration of reactant is $0.08\,\text{mol dm}^{-3}$ find concentration that remains after $35$ minute ?

$0.159\,\text{mol dm}^{-3}$

$0.0159\,\text{mol dm}^{-3}$

$1.05\,\text{mol dm}^{-3}$

$0.759\,\text{mol dm}^{-3}$

MHT CET 2026 19th April Evening Shift

MCQ (Single Correct Answer)

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Consider the reaction,
$3\text{I}^-_{(aq)} + \text{S}_2\text{O}_8^{2-}{}_{(aq)} \longrightarrow \text{I}_3^-{}_{(aq)} + 2\text{SO}_4^{2-}{}_{(aq)}$
If the rate of formation of $\text{SO}_4^{2-}$ at a particular time is $2.2 \times 10^{-2}\,\text{mol dm}^{-3}\,\text{s}^{-1}$. Calculate the rate of consumption of $\text{I}^-$.

$1.1 \times 10^{-2}\,\text{mol dm}^{-3}\,\text{s}^{-1}$

$2.2 \times 10^{-2}\,\text{mol dm}^{-3}\,\text{s}^{-1}$

$3.3 \times 10^{-2}\,\text{mol dm}^{-3}\,\text{s}^{-1}$

$4.4 \times 10^{-2}\,\text{mol dm}^{-3}\,\text{s}^{-1}$

MHT CET 2026 19th April Evening Shift

MCQ (Single Correct Answer)

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For a first order reaction, half life is $5$ hour. What time is required to reduce $10$ g of reactant to $2.5$ g ?

$3$ hour

$4$ hour

$5$ hour

$10$ hour