(a) State wether the following statements are TRUE or FALSE. Justify your answer.

(a)

1. False
   In an electrovalent compound, the cation attains the electronic configuration of the noble gas that comes before it in the periodic table.
2. True
   In the formation of a compound PQ₂, atom P gives one electron to each atom of Q. The compound PQ₂ is a good conductor of electricity in molten or aqueous solution state.

(b) Gram molecular mass of CO₂ = 12 + 2(16)
= 12 + 32 = 44 g

As,

44 g of CO₂ = 1 mole
∴ 22 g of CO₂ = $\frac{1}{44}$ x 22 = 0.5 moles

Hence, number of moles in 22 grams of carbon dioxide = 0.5