MHT-CET

Environmental Chemistry question bank (Chemistry)

Practice 37 free MHT-CET Chemistry - Environmental Chemistry questions with answers and step-by-step solutions.

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Q1.

What is the percentage atom economy when formula weight of product obtained is 70 u and the sum of formula weight of reactant is 140 u ?

(A)

$30 \%$

(B)

$35 \%$

(C)

$50 \%$

(D)

$75 \%$

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Q2.

Which from following reactions exhibits good atom economy according to the principles of green chemistry?

(A)

$\begin{aligned} & \mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{NaBr}+\mathrm{H}_2 \mathrm{SO}_4 \longrightarrow \\ & \mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}+\mathrm{NaHSO}_4+\mathrm{H}_2 \mathrm{O}\end{aligned}$

(B)

$\mathrm{C}_2 \mathrm{H}_4+\mathrm{H}_2 \xrightarrow{\mathrm{Ni}} \mathrm{C}_2 \mathrm{H}_6$

(C)

$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{COOH} \longrightarrow \mathrm{C}_2 \mathrm{H}_5 \mathrm{COOC}_2 \mathrm{H}_5+\mathrm{H}_2 \mathrm{O}$

(D)

$\begin{aligned} & \mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{SOCl}_2 \xrightarrow{\Delta} \mathrm{C}_4 \mathrm{H}_9 \mathrm{Cl}+\mathrm{HCl}+ \\ & \mathrm{SO}_2\end{aligned}$

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