Question

Calculate the no. of moles of 1.2g Ng​

Answer 1

Answer:

Correct option is

A

0.05 mol

As reaction is as follows:

Mg+

2

1

mO 2

→MgO

It means 1 mol of Mg reacts to give 1 mol of MgO.

Number of moles of Mg in 1.2 g =

24

1.2

=0.05 mol of Mg.

Therefore, the number of moles of MgO=0.05 mol