JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Analyzing +4 | -1

S-I: Many copper (I) compounds are undergo disproportion.

S-II:

{Cu}^{2+}

is more stable than

{Cu}^{+}

because of much more negative

\Delta_{\text {hyd }}{H}^{\circ}

{Cu}^{2+}

than

{Cu}^{+}

, which more than compensates for second ionisation enthalpy.

View answer and explanation

Correct option: A

Statement-I & statement-II are correct

Option A is correct because both statements are true: Copper(I) compounds disproportionate, and Cu2+ is more stable than Cu+ due to its higher hydration enthalpy.

More Questions from d & f- BLOCK ELEMENTS

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Mercury is transported in metal containers made of: Cadmipone is a mixture of: The number of element from the following that do not belong to lanthanoids is :
Eu, Cm, Er, Tb, Yb and Lu Statement-I:

{Sm}^{3+}

{Dy}^{3+}

have same colour (yellow).

Statement-II: Both ions are having same number of unpaired electrons. The most common oxidation state of Lanthanoid
elements is +3. Which of the following is likely to
also form other oxidation state? A mixture of

\mathrm{Ti}{\mathrm{O}_2}

and

\mathrm{BaS}{\mathrm{O}_4}

is called