NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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It is found that V forms a double salt isomorphous with Mohr’s salt. The oxidation number of V in this compound is :

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Correct option: B

+ \mathrm{ }2

Option B (

+ 2

) is correct because Mohr's salt has the formula (NH₄)₂Fe(SO₄)₂.6H₂O, where iron (Fe) has a +2 oxidation state, and since V forms an isomorphous double salt, it will also have a +2 oxidation state.

More Questions from REDOX REACTIONS

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The oxidation state of iron in sodium nitroprusside is : Titrations in which liberated

{I_2}

is estimated to carry out the volumetric estimations are known as ….titrations. For redox reaction,

\mathrm{MnO}_4^ - + {\mathrm{C}_2}\mathrm{O}_4^{2 - } + {\mathrm{H}^ + } \to \mathrm{M}{\mathrm{n}^{2 + }} + \mathrm{C}{\mathrm{O}_2} + {\mathrm{H}_2}\mathrm{O}

coefficient of reactants in balanced states are

\mathrm{MnO}_4^ -

{\mathrm{C}_2}\mathrm{O}_4^{2 - }

{\mathrm{H}^ + }

Which one of the following reaction is possible at anode? The couple having oxidised and reduced forms of a substance taking part in an oxidation or reduction half-reaction is called Assertion: When

\mathrm{Cu}_2 \mathrm{S}

is converted into

\mathrm{Cu}^{+} \,\&\, \mathrm{SO}_2

, then equivalent weight of

\mathrm{Cu}_2 \mathrm{S}

will be

\mathrm{M} / 8\,\left(\mathrm{M}=\mathrm{Mol}\right.

. wt. of

\mathrm{Cu}_2 \mathrm{S}

)
Reason:

\mathrm{Cu}^+

is converted

\mathrm{Cu}^{++}

, during this one electrons is lost.