1
MHT CET 2026 13th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following is NOT a redox reaction?
A
$\text{Zn} + \text{H}_2\text{SO}_4 \rightarrow \text{ZnSO}_4 + \text{H}_2$
B
$\text{Al(OH)}_3 + 3\text{HCl} \rightarrow \text{AlCl}_3 + 3\text{H}_2\text{O}$
C
$\text{Mg} + 1/2 \text{O}_2 \rightarrow \text{Mg}^{2+} + \text{O}^{2-}$
D
$\text{Fe}_{(s)} + \text{Cu}^{2+}_{(aq)} \rightarrow \text{Fe}^{2+}_{(aq)} + \text{Cu}_{(s)}$
2
MHT CET 2026 11th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
Find the oxidation number of Cl in $\text{ClO}_4^{-1}$
A
$-9$
B
$+7$
C
$-7$
D
$+9$
3
MHT CET 2025 26th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the oxidation number of carbon in methanal?

A

-2

B

+2

C

zero

D

+4

4
MHT CET 2025 26th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the equation, $\mathrm{BiO}_3^{-}+6 \mathrm{H}^{+}+x \mathrm{e}^{-} \rightarrow \mathrm{Bi}^{3+}+3 \mathrm{H}_2 \mathrm{O}$ What is the value of $x$ ?

A
2
B
3
C
4
D
6

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