You visited us 1 times! Enjoying our articles? Unlock Full Access!

Variable Oxidation States

Cu2+ has a st...

Question

$C u^{2 +}$ has a stronger polarising power than that of $C a^{2 +}$ because :

C u^{2 +}

ion is smaller than

C a^{2 +}

ion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C a^{2 +}

has inert gas configuration whereas

C u^{2 +}

ion does not

No worries! We‘ve got your back. Try BYJU‘S free classes today!

copper shows variable valency, calcium does not

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C u^{2 +}

is smaller than

C a^{2 +}

ion and the d-electrons in

C u^{2 +}

ion shield the nucleus poorly

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $C u^{2 +}$ is smaller than $C a^{2 +}$ ion and the d-electrons in $C u^{2 +}$ ion shield the nucleus poorly
As we move along a raw, radius decreases so Cu have smaller radius than Ca.
Also, d-electrons in $C u^{2 +}$ ion shield the nucleus poorly so nuclear charge will be high and $C u^{2 +}$ have stronger polarising power than that of $C a^{2 +}$ .

Suggest Corrections

Similar questions

C d^{2 +}

C a^{2 +}

C u^{2 +}

C u^{2 +}

I^{-}

C u^{2 +}

C u^{2 +}

C u

I^{-}

C u I_{2}

2 C u I_{2} ⟶ 2 C u I + I_{2}

2 I^{-} ⟶ I_{2} + 2 e^{-}

C u^{2 +} + 2 e^{-} ⟶ C u

F e^{2 +}, N i^{2 +}, C a^{2 +}, K^{+}, M g^{2 +}, N a^{+}, C u^{2 +}, Z n^{2 +}

Z n^{2 +}

C a^{2 +}

Join BYJU'S Learning Program