# NEET Chemistry Redox Reactions Question Bank

### done Question - Assertion and Reason

 Read the assertion and reason carefully to mark the correct option out of the options given below: If both assertion and reason are true and the reason is the correct explanation of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false. If the assertion and reason both are false. If assertion is false but reason is true
Assertion: $S{{O}_{2}}$ and $C{{l}_{2}}$ both are bleaching agents.             Reason: Both are reducing agents.                                                                         [AIIMS 1995]

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Fluorine exists only in ?1 oxidation state. Reason: Fluorine has $2{{s}^{2}}2{{p}^{5}}$ configuration. [AIIMS 2001]

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Stannous chloride is a powerful oxidising agent which oxidises mercuric chloride to mercury. Reason: Stannous chloride gives grey precipitate with mercuric chloride, but stannic chloride does not do so. [AIIMS 2002]

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: $HCl{{O}_{4}}$ is a stronger acid than $HCl{{O}_{3}}$. Reason: Oxidation state of $Cl$ in $HCl{{O}_{4}}$ is +VII and in $HCl{{O}_{3}}$+V. [AIIMS 2004]

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: In a reaction $Zn(s)+CuS{{O}_{4}}(aq)\to$ $ZnS{{O}_{4}}(aq)+Cu(s)$, $Zn$ is a reductant but itself get oxidized. Reason: In a redox reaction, oxidant is reduced by accepting electrons and reductant is oxidized by losing electrons.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Oxidation number of carbon in $C{{H}_{2}}O$ is zero. Reason: $C{{H}_{2}}O$ formaldehyde, is a covalent compound.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: The oxidation numbers are artificial, they are useful as a ?book-keeping? device of electrons in reactions. Reason: The oxidation numbers do not usually represent real charges on atoms, they are simply conventions that indicate what the maximum charge could possibly be on an atom in a molecule.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: ${{H}_{2}}S{{O}_{4}}$ cannot act as reducing agent. Reason: Sulphur cannot increase its oxidation number beyond + 6.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Equivalent weight of $N{{H}_{3}}$ in the reaction ${{N}_{2}}\to N{{H}_{3}}$ is 17/3 while that of ${{N}_{2}}$ is 28/6. Reason: Equivalent weight =$\frac{\text{Molecular weight}}{\text{number of }{{e}^{}}\text{lost or gained}}$.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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