1
MHT CET 2025 21st April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Rate law for the reaction $a A+b B \rightarrow c C+d D$ is $\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}]$. Which from following conditions does NOT affect the rate of reaction?

A
Concentration of A is doubled and concentration of $B$ is kept constant.
B
Concentration of B is doubled and concentration of $A$ is kept constant.
C
Concentration of B is doubled and concentration of $A$ is halved.
D
Concentration of A is kept constant and concentration of $B$ is halved.
2
MHT CET 2025 21st April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the name of reaction of aryl halide with alkyl halide and sodium metal in dry ether to give substituted aromatic compounds.

A
Wurtz reaction
B
Fittig reaction
C
Wurtz-Fittig reaction
D
Friedel Crafts reaction
3
MHT CET 2025 21st April Evening Shift
MCQ (Single Correct Answer)
+1
-0

What type of arenes are obtained when arene diazonium chloride is treated with fluoroboric acid and then heated further?

A
$\mathrm{Ar}-\mathrm{NO}_2$
B
$\mathrm{Ar}-\mathrm{F}$
C
$\mathrm{Ar}-\mathrm{Cl}$
D
$\mathrm{Ar}-\mathrm{H}$
4
MHT CET 2025 21st April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify an antiseptic compound from following.

A
Salvarsan
B
Thymol
C
Sulphanilamide
D
Chloromphenicol
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