Chemistry · JEE

Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions Mock Test for JEE

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Syllabus context

Part of Redox Reactions and Electrochemistry in JEE Main Chemistry.

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Q1ChemistryUnit 7: Redox Reactions and Electrochemistry

\boldsymbol{H}_{2} \boldsymbol{O}_{2}

is:

Q2ChemistryUnit 7: Redox Reactions and Electrochemistry

An oxidation process involves:

Q3ChemistryUnit 7: Redox Reactions and Electrochemistry

The reaction that takes place when

C l_{2}

gas is passed through conc. NaOH solution is :

Q4ChemistryUnit 7: Redox Reactions and Electrochemistry

Which of the following statements is correct for oxidation reaction?

Q5ChemistryUnit 7: Redox Reactions and Electrochemistry

The other name of comproportionation is:

Q6ChemistryUnit 7: Redox Reactions and Electrochemistry

The correct arrangement of following acids of phosphorus in the increasing order of oxidation state of phosphorous ¡S:

Q7ChemistryUnit 7: Redox Reactions and Electrochemistry

When sodium hydroxide solution is added to a freshly prepared solution of ferrous sulphate, a green precipitate of ferrous hydroxide is formed which on standing turns brown because:

Q8ChemistryUnit 7: Redox Reactions and Electrochemistry

In the atmosphere of industrial smog, copper corrodes to form: This question has multiple correct options

Q9ChemistryUnit 7: Redox Reactions and Electrochemistry

Identity the compound in which phosphorus exists in the oxidation state of +1

Q10ChemistryUnit 7: Redox Reactions and Electrochemistry

When chlorine water is exposed to sunlight

O_{2}

is liberated. Hence :

Q11ChemistryUnit 7: Redox Reactions and Electrochemistry

Which of the following is not oxidized by

\boldsymbol{O}_{3} ?

Q12ChemistryUnit 7: Redox Reactions and Electrochemistry

Assertion Statement

1: H g C l_{2}

and

S n C l_{2}

exist together in an aqueous solution. Reason Statement

2: S n C l_{2}

is a strong reducing agent.

Q13ChemistryUnit 7: Redox Reactions and Electrochemistry

\boldsymbol{K} \boldsymbol{B r}+\boldsymbol{M n O}_{2}+\boldsymbol{H}_{2} \boldsymbol{S O}_{4}(\text {conc.}) \longrightarrow

\boldsymbol{K} \boldsymbol{H} \boldsymbol{S} \boldsymbol{O}_{\mathfrak{S}}+\boldsymbol{M} \boldsymbol{n} \boldsymbol{S} \boldsymbol{O}_{4}+\boldsymbol{H}_{2} \boldsymbol{O}+[\boldsymbol{X}]

(unbalanced equation). Which statement is/are correct? This question has multiple correct options

Q14ChemistryUnit 7: Redox Reactions and Electrochemistry

\boldsymbol{C l O}_{3}^{-}+\boldsymbol{C l}^{-} \rightarrow \boldsymbol{C l}_{2}+\boldsymbol{C l O}_{2}

Which of the following is correct for this reaction:

Q15ChemistryUnit 7: Redox Reactions and Electrochemistry

The bleaching action of the bleaching powder is due to liberation of :

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