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1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify reductant in following reaction.

$$\mathrm{{C_2}O_4^{2 - } + MnO_4^ - + {H^ + } \longrightarrow M{n^{2 + }} + C{O_2} + {H_2}O}$$

A
$${H^ + }$$
B
$${H_2}O$$
C
$${C_2}O_4^{2 - }$$
D
$$MnO_4^ - $$
2
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the oxidation number of Mn in MnO$^{2-}_4$ ion?

A
+6
B
+8
C
$-$8
D
$-$6
3
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is used as an oxidising agent to bleach wood pulp into white paper?

A
$$\mathrm{H}_2 \mathrm{O}_2$$
B
$$\mathrm{Cl}_2$$
C
$$\mathrm{Mn}(\mathrm{OH})_2$$
D
NaOCl
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the oxidation number of As in H$$_3$$AsO$$_3$$ ?

A
+ 4
B
+ 3
C
$$-$$ 3
D
+ 2
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