JEE Advanced 2025 Paper 1 Online | Redox Reactions Question 2 | Chemistry

1

JEE Advanced 2025 Paper 1 Online

MCQ (Single Correct Answer)

+3

-1

One of the products formed from the reaction of permanganate ion with iodide ion in neutral aqueous medium is

A

I₂

B

IO₃⁻

C

IO₄⁻

D

IO₂⁻

2

JEE Advanced 2017 Paper 2 Offline

MCQ (Single Correct Answer)

+3

-0.75

The order of the oxidation state of the phosphorous atom in

$${H_3}P{O_2},{H_3}P{O_4},{H_3}P{O_3}$$ and $${H_4}{P_2}{O_6}$$ is

A

$${H_3}P{O_3} > {H_3}P{O_2} > {H_3}P{O_4} > {H_4}{P_2}{O_6}$$

B

$${H_3}P{O_4} > {H_3}P{O_2} > {H_3}P{O_3} > {H_4}{P_2}{O_6}$$

C

$${H_3}P{O_4} > {H_4}{P_2}{O_6} > {H_3}P{O_3} > {H_3}P{O_2}$$

D

$${H_3}P{O_2} > {H_3}P{O_3} > {H_4}{P_2}{O_6} > {H_3}P{O_4}$$

3

IIT-JEE 2007 Paper 2 Offline

MCQ (Single Correct Answer)

+4

-0

Match the reactions in Column I with nature of the reactions/type of the products in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 $$\times$$ 4 matrix given in the ORS.

	Column I		Column II
(A)	$$\mathrm{O_2^ - \to {O_2} + O_2^{2 - }}$$	(P)	redox reaction
(B)	$$\mathrm{CrO_4^{2 - } + {H^ + }}$$	(Q)	one of the products has trigonal planar structure
(C)	$$\mathrm{MnO_4^ - + NO_2^ - + {H^ + } \to}$$	(R)	dimeric bridged tetrahedral metal ion
(D)	$$\mathrm{NO_3^ - + {H_2}S{O_4} + F{e^{2 + }} \to }$$	(S)	disproportionation

A

$$\mathrm{A-(p,s);B-(r);C-(p,q);D-(p)}$$

B

$$\mathrm{A-(p);B-(r);C-(p);D-(p)}$$

C

$$\mathrm{A-(p,s);B-(r);C-(p);D-(p, q)}$$

D

$$\mathrm{A-(p);B-(r, s);C-(p,q);D-(p)}$$

4

IIT-JEE 2001 Screening

MCQ (Single Correct Answer)

+2

-0.5

The reaction, $$3Cl{O^ - }(aq)$$$$ \to ClO_3^ - (aq) + 2C{l^ - }(aq)$$ is an example of :

A

Oxidation reaction

B

Reduction reaction

C

Disproportionate reaction

D

Decomposition reaction

JEE Advanced Subjects