Gram molecular mass is defined as

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Both 1 & 2

None of the above

The sum of protons and neutrons in the given molecule

The substance whose mass in gram is equal to molecular mass

answer is A.

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Detailed Solution

Gram molecular mass is defined as the substance which contains its mass in grams is equal to its molecular mass.
Gram molecular mass is defined as the substance which contains its mass in grams is equal to its molecular mass. It is also defined as the molecular mass which is expressed in grams is known as gram molecular mass. For example, 2u of

H_{2}

= 2g of

H_{2}

. To determine the gram molecular mass, first check the molecular formula and then find out the mass of each element in the molecular formula. Then multiply by subscript if it is present for the element and then finally add up masses of all elements.

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