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Assertion :Oxidation and reduction are c...

Assertion :Oxidation and reduction are complementary to each other
Reason : A substance will lose electrons only when some other substance will gain them . Thus. A substance gets oxidised only when some other substance gets reduced.

A

If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

B

If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

C

If Assertion is CORRECT but Reason is INCORRECT.

D

If Assertion is INCORRECT but Reason is CORRECT.

Text Solution

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The correct Answer is:
A
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Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. For converting one mole of nitrobenzene to aniline how many moles of electrons are transferred ?

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. Which of the following is an example of redox reaction ?

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. This reaction is an example of Br_(2) + OH^(-) to BrO_(3)^(-) + H_(2)O + Br^(-)

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. The equivalent weight of Cu_(2)S in the following reaction is Cu_(2)S + O_(2) to Cu^(+2) + SO_(3)

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Assertion :- In the reaction Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s) Cu^(+2) ions act as oxidising agent and Zn atoms act as a reducing agent. Reason :- A substance when readily gain electrons from other, substance is an oxidising agent while reducing agent is a substance which can lose electrons to other susbtances.

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Assertion : Cell junctions are present in the epithelium and other tissues Reason : Among cell junctions, adhering junctions help to stop substances from leaking across a tissue

Knowledge Check

  • Assertion : Cell junctions are present in the epithelium and other tissues Reason : Among cell junctions, adhering junctions help to stop substances from leaking across a tissue

    A
    If both assertion and reason are true and reason is the correct explanation of assertion
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false