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BITSAT Redox Reactions PYQs with Solutions

19 previous year questions from Redox Reactions (BITSAT Chemistry) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

19 questionsChemistry2009–2024Answers + solutions

About Redox Reactions PYQs

Redox Reactions has 19 previous year questions in the Quantrex Academy BITSAT Chemistry bank. The 19 questions in this list come from BITSAT (19), spanning 2009 to 2024. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

  • 2024: 3
  • 2021: 1
  • 2020: 1
  • 2019: 1
  • 2018: 1
  • 2017: 1
  • 2014: 1
  • 2013: 2
  • 2012: 2
  • 2011: 3
  • 2010: 2
  • 2009: 1

Redox Reactions questions with solutions

1

What is the stoichiometric coefficient of SO_2 in the following balance reaction? MnO_4^ - (a q)+SO_2(g) Mn^ 2+ (a q)+HSO_4^ - (a q) (in acidic solution)

BITSAT 2024 Solution
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2

Volume of M / 8 KMnO_4 solution required to react completely with 25.0 cm^3 of M / 4 FeSO_4 in acidic medium is.

BITSAT 2024 Solution
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3

Which of the following is only a redox reaction but not a disproportionation reaction?

BITSAT 2024 Solution
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4

For the reaction: NH_ 3 +OCl^ - arrow N_ 2 H_ 4 +Cl^ - in basic medium, the coefficients of NH_ 3 , OCl^ - and N_ 2 H_ 4 for the balanced equation are respectively

BITSAT 2021 Solution
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5

Which of the following is not a disproportionation reaction?

BITSAT 2020 Solution
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6

0. 45g acid of molecular mass 90 was neutralise by 20ml of 0. 5NKOH . The basicity of the acid is

BITSAT 2019 Solution
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7

Which of the following statements is incorrect regarding the equation MeCHO + [Ag( NH _ 3 )^ 2 ] + + ¯ O H ⟶ MeCOO ^ - + Ag

BITSAT 2018 Solution
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8

4g of copper was dissolved in conc. HNO _ 3 . The copper nitrate thus obtained gave 5g of its oxide on strong heating the equivalent weight of copper is

BITSAT 2017 Solution
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9

The ratio of oxidation states of Cl in potassium chloride to that in potassium chlorate is

BITSAT 2014 Solution
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10

The oxidation state of sulphur in Na_ 2 S_ 4 O_ 6 is

BITSAT 2013 Solution
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11

Volume of 3 \% solution of sodium carbonate necessary to neutralise a litre of 0.1 N sulphuric acid

BITSAT 2013 Solution
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12

In the reaction 3 Br_ 2 +6 CO_ 3 ^ 2- +3 H_ 2 O arrow 5 Br^ - +BrO_ 3 ^ - +6 HCO_ 3 ^ -

BITSAT 2012 Solution
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13

0.45 g of acid molecular weight 90 is neutralised by 20 ml of 0.5 N caustic potash. The basicity of acid is

BITSAT 2012 Solution
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14

1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide. The equivalent weight of metal is:

BITSAT 2011 Solution
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15

A gas X at 1 atm is bubbled through a solution containing a mixture of 1 M Y^ - and 1 M Z^ - at 25^ ^ ∘ C . If the reduction potential is Z > Y > X , then

BITSAT 2011 Solution
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16

Which of the following cannot give iodometric titration?

BITSAT 2011 Solution
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17

In redox reaction 1 g -eq of reducing agent requires Pgm-eq. of oxidising agent. The value of P is

BITSAT 2010 Solution
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18

In which of the following reactions, H_ 2 O_ 2 is acting as a reducing agent?

BITSAT 2010 Solution
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19

The oxidation states of sulphur in the anions SO_ 3 ^ 2- , S_ 2 O_ 4 ^ 2- and S_ 2 O_ 6 ^ 2- follow the order

BITSAT 2009 Solution
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