What is the molecular mass of $C C l_{4}$ ?
Given the atomic mass of $C = 12 u$ and $C l = 35.5 u$

160 u

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342.5 u

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154 u

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150.5 u

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Solution

The correct option is C
154 u

Molecular mass is the sum of atomic mass of all the constituent atoms present in the molecule.

Atomic mass of the elements in $C C l_{4}$ :
Atomic mass of C = 12 u
Atomic mass of Cl = 35.5 u
Thus, the molecular mass of $C C l_{4}$ = 12 + (4 $\times$ 35.5) = 154 u.

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