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

What is the number of electrons passed through an electrolyte solution when 1 ampere current is passed for 16.1 minutes?

A
$$5.022 \times 10^{24}$$
B
$$3.011 \times 10^{22}$$
C
$$6.022 \times 10^{21}$$
D
$$2.022 \times 10^{23}$$
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify reactant (A) used in the following conversion.

Chlorobenzene $$+\mathrm{A} \underset{\mathrm{AlCl}_3}{\stackrel{\text { anhydrous }}{\longrightarrow}} 1-$$ Chloroacetophenone $$+4 -$$ Chloroacetophenone

A
Ethyl acetate
B
Acetophenone
C
Acetic acid
D
Acetyl chloride
3
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

$$2 \sin \left(\theta+\frac{\pi}{3}\right)=\cos \left(\theta-\frac{\pi}{6}\right)$$, then $$\tan \theta=$$

A
$$\frac{-1}{\sqrt{3}}$$
B
$$-\sqrt{3}$$
C
$$\sqrt{3}$$
D
$$\frac{1}{\sqrt{3}}$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

$$\int[1+2 \tan x(\tan x+\sec x)]^{\frac{1}{2}} d x= $$

A
$$\log [\sec x(\sec x-\tan x)]+c$$
B
$$\log [\operatorname{cosec} x(\sec x+\tan x)]+c$$
C
$$\log [\sec x(\sec x+\tan x)]+c$$
D
$$\log [\sec \mathrm{x}+\tan \mathrm{x}]+\mathrm{c}$$
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