Q15 of 75 Page 81

If an element X has a valency of 3, then find out the formula of its chloride and sulphide.

It is given that element X has a valency of 3.

Formula for chloride of element X:



Formula: MCl3


Thus, the formula for chloride of element X is MCl3.


Formula for sulphide of element X:



Formula: M2S3


Thus, the formula for sulphide of element X is M2S3.


More from this chapter

All 75 →
13

While searching for various atomic mass units, scientists initially took 1/16 of the mass of a naturally occurring oxygen atom as one unit. State two reasons for this.

 14

What is the difference between 3O and O3?

 16

(i) The valency of carbon is 4 and that of chlorine is 1. What will be the formula of carbon tetrachloride?

(ii) The valency of an element X is 1 and that of oxygen is 2. What will be the formula of the compound formed by the combination of element X with oxygen?

 17

In the chemical reaction given below, find the amount of barium sulphate formed. Also write the law involved