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Redox Reactions — BITSAT Chemistry PYQs

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

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Redox Reactions — BITSAT Chemistry PYQs

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)

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.

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

For the reaction: NH ₃+ OCl ⁻ 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

Which of the following is not a disproportionation reaction?

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

Which of the following statements is incorrect regarding the equation MeCHO + Ag NH 3 2 + + O ¯ H ⟶ MeCOO - + Ag

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

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

The oxidation state of sulphur in Na ₂ ~S ₄ O ₆ is

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

In the reaction 3 Br ₂+6 CO ₃²⁻+3 H ₂ O 5 Br ⁻+ BrO ₃⁻+6 HCO ₃⁻

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

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

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

Which of the following cannot give iodometric titration?

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

In which of the following reactions, H ₂ O ₂ is acting as a reducing agent?

The oxidation states of sulphur in the anions SO ₃²⁻, S ₂ O ₄²⁻ and S ₂ O ₆²⁻ follow the order

Redox Reactions — BITSAT Chemistry PYQs

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)

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.

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

For the reaction: NH ₃+ OCl ⁻ 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

Which of the following is not a disproportionation reaction?

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

Which of the following statements is incorrect regarding the equation MeCHO + Ag NH 3 2 + + O &#175; H &#10230; MeCOO - + Ag

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

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

The oxidation state of sulphur in Na ₂ ~S ₄ O ₆ is

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

In the reaction 3 Br ₂+6 CO ₃²⁻+3 H ₂ O 5 Br ⁻+ BrO ₃⁻+6 HCO ₃⁻

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

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

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

Which of the following cannot give iodometric titration?

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

In which of the following reactions, H ₂ O ₂ is acting as a reducing agent?

The oxidation states of sulphur in the anions SO ₃²⁻, S ₂ O ₄²⁻ and S ₂ O ₆²⁻ follow the order

Which of the following statements is incorrect regarding the equation MeCHO + Ag NH 3 2 + + O ¯ H ⟶ MeCOO - + Ag