Identify and correct the mistake in each of the following:
i) The molar volume of gas at STP is $22.4 c m^{3}$ .
ii) $2 \times R . M . M . = V . D .$
iii) An atom cannot exist independently.
iv) The ratio of atoms in a molecule may be integral or simple or may not be fixed.
v) $H_{2} O$ is a homo atomic molecule.

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Solution

Corrected statements:-
(i) Molar volume of gas at STP is $22.4 d m^{3}$ .
(ii) $2 \times V . D =$ Molecular weight
(iii) An atom can exist independently.
(iv) In a molecule, the ratio of atoms is fixed.
(v) $H_{2} O$ is a polyatomic molecule and heteroatomic molecule.

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Identify and correct the mistake in each of the following:i) The molar volume of gas at STP is 22.4 cm3.ii) 2×R.M.M.=V.D.iii) An atom cannot exist independently.iv) The ratio of atoms in a molecule may be integral or simple or may not be fixed.v) H2O is a homo atomic molecule.

Corrected statements:-(i) Molar volume of gas at STP is 22.4dm3.(ii) 2×V.D= Molecular weight(iii) An atom can exist independently.(iv) In a molecule, the ratio of atoms is fixed.(v) H2O is a polyatomic molecule and heteroatomic molecule.

Corrected statements:-
(i) Molar volume of gas at STP is $22.4 d m^{3}$ .
(ii) $2 \times V . D =$ Molecular weight
(iii) An atom can exist independently.
(iv) In a molecule, the ratio of atoms is fixed.
(v) $H_{2} O$ is a polyatomic molecule and heteroatomic molecule.