1
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the name of following reaction.

Toluene + chromyl chloride $$\stackrel{\mathrm{CS}_2}{\longrightarrow}$$ complex $$\stackrel{\mathrm{H}_3 \mathrm{O}^{+}}{\longrightarrow}$$ Benzaldehyde

A
Stephen reaction
B
Etard reaction
C
Rosenmund reaction
D
Wolf-Kishner reaction
2
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the half-life of a first order reaction if time required to decrease concentration of reactant from 1.0 M to 0.25 M is 10 hour?

A
12 hour
B
4 hour
C
5 hour
D
10 hour
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is obtained as major product $$\mathrm{x}$$ in the reaction stated below?

Anisole $$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{conc.\,{H_2}S{O_4}}^{conc.\,HN{O_3}}}}$$ x

A
2, 4, 6-Trinitro anisole
B
4-Nitro anisole
C
2-Nitro anisole
D
3-Nitro anisole
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following statements about ozone depletion is NOT true?

A
Depletion of ozone is most pronounced over Antarctica.
B
Freons used in aerosol that enters into atmosphere causes depletion of ozone layer.
C
Nitrogen oxide released from cars causes ozone depletion.
D
Due to ozone depletion less amount of UV radiations reaches to earth surface.
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