1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { Which among the following is haloarene? } $$

A
MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 4 English Option 1
B
MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 4 English Option 2
C
MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 4 English Option 3
D
MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 4 English Option 4
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following chemical activities does NOT exhibit good atom economy according to the principles of green chemistry?

A
Formation of Grignard reagent.
B
Action of HX on alkene to form alkylhalide.
C
Action of thionyl chloride on ethanol to form ethyl chloride.
D
Formation of cyclohexanol from phenol by catalytic hydrogenation.
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate activation energy for a reaction if it's rate doubles when temperature is raised from $20^{\circ} \mathrm{C}$ to $35^{\circ} \mathrm{C}\left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

A
17.336 kJ
B
$\quad 26.900 \mathrm{~kJ}$
C
34.673 kJ
D
44.236 kJ
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the formal charge present on oxygen atom (numbered 1) in Lewis structure of $\mathrm{CO}_2$ ?

MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Chemical Bonding and Molecular Structure Question 3 English
A
0
B
-1
C
+1
D
-2
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