Valency 1

In CH_4 , valency of carbon is four . Valency of carbon in acetylene is .

Valency of noble gases is zero.

Valency of a carbonate (CO_(3)) radical is

Valency is the number of hydrogen atoms which can combine with (or displace) one atom of the element (or radical] forming a compound'. With reference to the above definition of valency, state the valency of chlorine in hydrogen chloride, giving reasons.

Valency factor of the following compounds will be same in neutralisation -

Valency of Iron in FeCl_2 is ………………. and in FeCl_3 it is ……………… .

Define - Valency

Certain metals exbibit variable valencies which include valencies 1^(+),2^(+),3^(+) & 4^(+) . State the variable valency of the following metals -a] Copper b] Silver c] Mercury d] Iron e] Tin f] Lead-[Write each symbol with the variable valency]

Identify the following on the basis of given atomic numbers: 19,15,14,8,4 Metal with valency of 1.