Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Assertion : Sodiumacetate on Kolbe's electrolysis gives methane.

Reason : Methyl free radical is formed at cathode.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


D.

If both assertion and reason are false.

Sodium acetate on Kolbe's electrolysis gives ethane. It is formed at anode.


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42.

Assertion : H3PO2 has strong reducing property but H3PO4 does not.

Reason : P-OH bond present in H3PO4.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


43.

Assertion : H2Se is less acidic than H2S.

Reason : S is less electronegative than Se.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


44.

Assertion: Fluorine is a stronger oxidizing agent than iodine.

Reason : Fluorine has greater electronegativity than iodine.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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45.

Assertion : Ce4+ is used as an oxidising agent in volumetric analysis.

Reason : Ce4+has the tendency of attaining + 3 oxidation state

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


46.

Assertion : The spectrum of He is expected to be similar to that of hydrogen.

Reason : He+ is also one electron system.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


47.

Assertion: Cl2, gas bleaches the articles permanently.

Reason : Cl2 is a strong reducing agent.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false


48.

Assertion : La(OH)3 is more basic than Lu(OH)3

Reason : Size of Lu3+ increases and shows more covalent character.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false


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49.

Assertion : F- ion is a weak ligand and forms outer orbital complex.

Reason : F- ion cannot force the electrons of dz2 and dx2-y2 orbitals of the inner shell to occupy dxy, dyz and dzx orbitals of the same shell.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


50.

Assertion : [Fe(H2O)5NO]SO4 is paramagnetic.

Reason : The Fe in [Fe(H2O)5NO]SOhas three unpaired electrons.

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

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

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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