1
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

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

A
$\mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{NaBr}+\mathrm{H}_2 \mathrm{SO}_4 \longrightarrow \mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}+\mathrm{NaHSO}_4+\mathrm{H}_2 \mathrm{O}$
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
$\mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{SOCl}_2 \xrightarrow{\Delta} \mathrm{C}_4 \mathrm{H}_9 \mathrm{Cl}+\mathrm{HCl}+ \mathrm{SO_2}$
2
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following solvents reduces the environmental pollution?

A
Water
B
Dichloromethane
C
Trichloromethane
D
Tetrachloromethane
3
MHT CET 2024 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following statements is NOT true according to principles of green chemistry?

A
It is good to use the technique of protection and deprotection of functional group in organic synthesis.
B
Use of chemicals derived from plant resource is better than crude oil.
C
Use of biodegradable pesticides is advantageous.
D
Use of critical $\mathrm{CO}_2$ as solvent is better than organic solvents.
4
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is an example of two dimensional nanostructures?

A
Nanoparticles
B
Thin films
C
Quantum dots
D
Nanowires
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