symbols and valencies

symbols and valencies

Multiple Choice

The valency of carbon

• +4

• 0

Multiple Choice

The valency of Argon

• +1

• 0

Multiple Choice

Valency of Sulphur

• -5

• -2

Multiple Choice

Formula of Iron [II]oxide

• FeO

• Fe₂O

Multiple Choice

1. The correct representation of symbol of cobalt is :

• CO

• Co

Multiple Choice

The valency of ammonium is:

• +2

• +1

Multiple Choice

The variable valency of copper is:

• +1 and +3

• +1 and +2

Multiple Choice

The formula of Dichromate is:

• Cr₂O₇

• Cr₂O6

Multiple Choice

Formula of carbonic acid

• H₂CO₃

• H₂CO4

Multiple Choice

The variable valency of copper is:

• +1 and +3

• +1 and +2