Question

Statement-1 : One mole of SO₂ contains double the number
of molecules present in one mole of O₂.
Statement-2 : Molecular weight of SO₂ is double to that of
O₂.

Answer 1

Answer:

Both Statements are true and Statement 2 is the correct explanation of Statement 1.

Answer 2

Statement-1 is false and the statement-2 is true

Explanation:

According to Avogadro's law one mole of any substance contain avogadro number i.e. $6.023\times10^{23}$ molecules.

In statement-1 it is given that one mole of SO₂ contains double the number

of molecules present in one mole of O₂. This is false as both are one mole amount and contain Avogadro number of molecules.

In statement-2, it is given that Molecular weight of SO₂ is double to that of

O₂. This is true.

Molecular weight of SO₂ = $32+(16\times2)=32+32=64$

Molecular weight of O₂ = $16\times2=32$

Therefore, Statement-1 is false and the statement-2 is true