1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Which of the following reactions is a decomposition redox reaction?

A
P4(s) + 3OH$$-$$(aq) + 3H2O(l) $$\to$$ PH3(g) + 3H2PO$$_2^ - $$(aq)
B
2Pb(NO3)2(s) $$\to$$ 2PbO(s) + 4NO2(g) + O2(g)
C
N2(g) + O2(g) $$\to$$ 2NO(g)
D
Cl2(g) + 2OH$$-$$(aq) $$\to$$ ClO$$-$$(aq) + Cl$$-$$(aq) + 4H2O(l)
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
What is the change in oxidation number of carbon in the following reaction?
CH4(g) + 4Cl2(g) $$ \to $$ CCl4(l) + 4HCl(g)
A
0 to + 4
B
$$ - $$4 to + 4
C
0 to $$ - $$ 4
D
+ 4 to + 4
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Which of the following reactions are disproportionation reaction?

(a) 2Cu+ $$ \to $$ Cu2+ + Cu0
(b) 3MnO42+ + 4H+ $$ \to $$ 2MnO4- + MnO2 + 2H2O
(c) 2KMnO4 $$\buildrel \Delta \over \longrightarrow $$ K2MnO4 + MnO2 + O2
(d) 2MnO4- + 3Mn2+ + 2H2O $$ \to $$ 5MnO2 + 4$${H^ \oplus }$$

Select the correct option from the following :
A
(a), (c) and (d)
B
(a) and (b) only
C
(a) and (d) only
D
(a), (b) and (c)
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
For the redox reaction,
MnO4 + C2O4 2– + H+ $$ \to $$ Mn2+ + CO2 + H2O
The correct coefficients of the reactants for the balanced equation are
A
MnO4- C2O42- H+
16 5 2
B
MnO4- C2O42- H+
2 5 16
C
MnO4- C2O42- H+
2 16 5
D
MnO4- C2O42- H+
5 16 2
NEET Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12