Question

Name any four elements which have variable valency.

Answer 1

Answer:

iron, tin, lead, phosphorus

Answer 2

Dear Student,

◆ Valency -

• Valency is the combining capacity of an element.
• When single element can combine with other element/elements in different proportions, it is said to have variable valency.

Following elements have variable valencies -

1. Copper shows valency of +1 and +2.
2. Iron shows valency of +2 as well as +3.
3. Cobalt also shows valency of +2 and +3.
4. Manganese shows valencies +2, +3, +4, +6 and +7.
5. Silver shows valency of +1 and +2.
6. Mercury also shows valency of +1 and +2.

Thanks dear. Hope this helps you...