Match List-I with List-II, match the gas evolved during each reaction. List-I List-II A NH 4 2 Cr 2 O 7 ⟶ Δ I H 2 B KMnO 4 + HCl → II N 2 C Al + NaOH + H 2 O → III O 2 D NaNO 3 ⟶ Δ IV Cl 2 Choose the correct answer from the options given below

A - II , B - IV , C - I , D - III

A - II , B - III , C - I , D - IV

A - III , B - I , C - IV , D - II

A - III , B - IV , C - I , D - II

In which of the following reactions the hydrogen peroxide acts as a reducing agent?

HOCl + H 2 O 2 → H 3 O + + Cl - 1 + O 2

PbS + 4 H 2 O 2 → PbSO 4 + 4 H 2 O

2 Fe 2 + + H 2 O 2 → 2 Fe 3 + + 2 OH -

Mn 2 + + H 2 O 2 → Mn 4 + + 2 OH -

Match List-I with List-II, match the gas evolved during each reaction. List-I List-II A NH 4 2 Cr 2 O 7 ⟶ Δ I H 2 B KMnO 4 + HCl → II N 2 C Al + NaOH + H 2 O → III O 2 D NaNO 3 ⟶ Δ IV Cl 2 Choose the correct answer from the options given below

A - II , B - IV , C - I , D - III

A - II , B - III , C - I , D - IV

A - III , B - I , C - IV , D - II

A - III , B - IV , C - I , D - II

HARD

JEE Main

IMPORTANT

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The Plot of $pH$ -metric titration of weak base ${NH}_{4} OH$ vs strong acid $HCl$ looks like

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Important Questions on Redox Reactions

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 28 July 2022 Shift 1>Q 59

Match List-I with List-II, match the gas evolved during each reaction.

	List-I		List-II
A	${({NH}_{4})}_{2} {Cr}_{2} O_{7} \overset{Δ}{⟶}$	I	$H_{2}$
B	${KMnO}_{4} + HCl \to$	II	$N_{2}$
C	$Al + NaOH + H_{2} O \to$	III	$O_{2}$
D	${NaNO}_{3} \overset{Δ}{⟶}$	IV	${Cl}_{2}$

Choose the correct answer from the options given below

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 28 July 2022 Shift 1>Q 60

For kinetic study of the reaction of iodide ion with $H_{2} O_{2}$ at room temperature :

(A) Always use freshly prepared starch solution.

(B) Always keep the concentration of sodium thiosulphate solution less than that of $KI$ solution.

(D) Record the time immediately before the appearance of blue colour.

(E) Always keep the concentration of sodium thiosulphate solution more than that of $KI$ solution.

Choose the correct answer from the options given below

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 29 July 2022 Shift 2>Q 61

A compound '

X

' is a weak acid and it exhibits colour change at

pH

close to the equivalence point during neutralization of

NaOH

with

{CH}_{3} COOH

. Compound '

X

' exists in ionized form in basic medium. The compound '

X

' is

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main 16 March 2021 Shift 1>Q 5

2 {MnO}_{4}^{-} + {bC}_{2} O_{4}^{2 -} + {cH}^{+} \to {xMn}^{2 +} + {yCO}_{2} + {zH}_{2} O

If the above equation is balanced with integer coefficients, the value of

c

is _______ . (Round off to the Nearest Integer).

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 7th January 2020 Shift 2>Q 11

The redox reaction among the following is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 31 August 2021 Shift 2>Q 18

In which one of the following sets all species show disproportionation reaction?

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 2nd April 2017>Q 20

The products obtained when chlorine gas reacts with cold and dilute aqueous

NaOH

are

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 6 - Redox Reactions>JEE Main - 25 Feb 2021 Shift 1>Q 25

Which of the following equation depicts the oxidizing nature of

H_{2} O_{2}

The Plot of pH-metric titration of weak base NH4OH vs strong acid HCl looks like

Important Questions on Redox Reactions

Learn and Prepare for any exam you want !

The Plot of $pH$ -metric titration of weak base ${NH}_{4} OH$ vs strong acid $HCl$ looks like