1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the change in oxidation number of nitrogen in following conversion?

$$\mathrm{NO}_3^{-} \longrightarrow \mathrm{NO}_2$$

A
+4 to +5
B
+3 to +5
C
+5 to +4
D
$$-$$3 to +5
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify reducing agent in following reaction

$$\mathrm{H}_2 \mathrm{O}_{2(\mathrm{ag})}+\mathrm{ClO}_{4(\mathrm{aq})}^{-} \rightarrow \mathrm{ClO}_{2(\mathrm{aq})}^{-}+\mathrm{O}_{2(\mathrm{g})}$$

A
$$\mathrm{ClO}_{2(a q)}^{-}$$
B
$$\mathrm{H}_2 \mathrm{O}_{2 \text { (aq) }}$$
C
$$\mathrm{ClO}_{4(a q)}^{-}$$
D
$$\mathrm{O}_{2(\mathrm{g})}$$
3
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify reductant in following reaction.

$$\mathrm{H}_2 \mathrm{~S}+\mathrm{NO}_2 \rightarrow \mathrm{H}_2 \mathrm{O}+\mathrm{NO}+\mathrm{S}$$

A
$$\mathrm{H}_2 \mathrm{~S}$$
B
$$\mathrm{NO}_2$$
C
$$\mathrm{NO}$$
D
$$\mathrm{S}$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Oxidation state of Cr in potassium dichromate is

A
+7
B
+6
C
+1
D
+5
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