Question

answer this pls pls pls ​

Answer 1

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1) Option -(c)

→ Gram atomic mass is the mass, in grams, of one mole of atoms in a monoatomic chemical element. It is numerically equal to the relative atomic mass in grams. The atomic mass of an element expressed in grams is called gram atomic mass.

∴ gram atomic mass of sodium =23gm

2) Option -(a)

→ CO2 ≈≈> 1 Carbon atom and 2 Oxygen atoms

So, C:O ≈≈> 1:2

3) Option - (c)

→ Assertion ≈≈> The chemical formula of ammonium ion is [NH4]+. The valency is +1 as it has one free electron on the central atom.

[↑Assertion is true↑]

→ Reason ≈≈> The combining capacity of an element is known as its valency, but they gave atomicity...

[↑Reason is False↑]

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