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

What is the frequency of red light having wave length 750 nm ?

A
$3.0 \times 10^{14} \mathrm{~Hz}$
B
$4.0 \times 10^{14} \mathrm{~Hz}$
C
$7.5 \times 10^{14} \mathrm{~Hz}$
D
$9.0 \times 10^{14} \mathrm{~Hz}$
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the product ' $C$ ' formed in the following series of reactions.

MHT CET (PCB) 2024 22th April Morning Shift Chemistry - Hydrocarbons Question 2 English
A
Ethane
B
Bromoethane
C
Ethyl magnesium bromide
D
Ethene
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following groups exhibits +I effect?

A
-COOR
B
-COOH
C
$-\mathrm{C}_2 \mathrm{H}_5$
D
$-\mathrm{NO}_2$
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following equation exhibits integrated rate law equation for first order reaction?
A
$\mathrm{k}=\frac{[\mathrm{A}]_0-[\mathrm{A}]_1}{2}$
B
$\quad \mathrm{k}=\frac{2.303}{\mathrm{t}} \times \log \frac{\mathrm{a}}{(\mathrm{a}-\mathrm{x})}$
C
$\quad k=\frac{1}{t} \ln \frac{(a-x)}{a}$
D
$\quad \mathrm{k}=\frac{1}{\mathrm{t}} \times \frac{\mathrm{x}}{\mathrm{a}(\mathrm{a}-\mathrm{x})}$
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