(B) The correct option is $(B)$.$Cu$ (Copper) shows variable valency (e.g.,$+1$ and $+2$) due to the presence of vacant $d-$orbitals in its electronic

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(B) The correct option is $(B)$.$Cu$ (Copper) shows variable valency (e.g.,$+1$ and $+2$) due to the presence of vacant $d-$orbitals in its electronic configuration,which allows for the participation of $d-$electrons in bonding.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Valency and oxidation state

Easy

Variable valency is shown by

A
$Na$
B
$Cu$
C
$Mg$
D
$Al$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Valency and oxidation state

What will be the formula of the compound formed between the following elements?
$(i)$ The element with atomic number $19$ and iodine.
$(ii)$ The first element and oxygen.

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The oxidation states of phosphorus vary from

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Which is the correct oxidation state of lead?

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$A$ compound contains three elements $A$,$B$ and $C$. If the oxidation states are $A = +2$,$B = +5$ and $C = -2$,the possible formula of the compound is

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The formula of the oxide of an element $M$ having $IE_1 = 100 \ kJ/mol$,$IE_2 = 250 \ kJ/mol$ and $IE_3 = 1500 \ kJ/mol$ should be:

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Variable valency is shown by

Similar Questions

What will be the formula of the compound formed between the following elements?$(i)$ The element with atomic number $19$ and iodine.$(ii)$ The first element and oxygen.

The oxidation states of phosphorus vary from

Which is the correct oxidation state of lead?

$A$ compound contains three elements $A$,$B$ and $C$. If the oxidation states are $A = +2$,$B = +5$ and $C = -2$,the possible formula of the compound is

The formula of the oxide of an element $M$ having $IE_1 = 100 \ kJ/mol$,$IE_2 = 250 \ kJ/mol$ and $IE_3 = 1500 \ kJ/mol$ should be:

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What will be the formula of the compound formed between the following elements?
$(i)$ The element with atomic number $19$ and iodine.
$(ii)$ The first element and oxygen.