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Standard XII

Chemistry

Empirical & Molecular Formula

What is the r...

Question

What is the ratio of the empirical formula mass to the molecular formula mass of benzene?

1 : 6

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2 : 3

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6 : 1

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3 : 2

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Solution

The correct option is A $1 : 6$
Molecular formula of benzene $= C_{6} H_{6}$
Molecular formula mass of benzene $= 78$
Empirical formula of benzene $= C H$
Empirical formula mass of benzene $= 13$

$∴ \frac{empirical formula mass}{molecular formula mass} = \frac{13}{78} = 1 : 6$

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Empirical & Molecular Formula

Standard XII Chemistry

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What is the ratio of the empirical formula mass to the molecular formula mass of benzene?

The correct option is A 1:6Molecular formula of benzene =C6H6 Molecular formula mass of benzene =78 Empirical formula of benzene =CH Empirical formula mass of benzene =13 ∴empirical formula massmolecular formula mass=1378=1:6

The correct option is A $1 : 6$
Molecular formula of benzene $= C_{6} H_{6}$
Molecular formula mass of benzene $= 78$
Empirical formula of benzene $= C H$
Empirical formula mass of benzene $= 13$

$∴ \frac{empirical formula mass}{molecular formula mass} = \frac{13}{78} = 1 : 6$