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Introduction to Aldehydes and Ketones

The molecular...

Question

The molecular formula of a compound is a simple multiple of its empirical formula.

A

True

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B

False

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Solution

The correct option is A True
The molecular formula of a compound may be the empirical formula, or it may be a multiple of the empirical formula.

One molecule of ethylene (molecular formula $C_{2} H_{4}$ ) contains two atoms of carbon and four atoms of hydrogen. Its empirical formula is $C H_{2}$ .

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Q. Which of the following statements about molecular and empirical formulas is\ are false?
I. A given compound can have the same, molecular and empirical formula.
II. The molecular formula is a whole number multiple of the empirical formula.
III.

H_{2} O_{2}

represents the empirical formula of hydrogen peroxide.

Q. If the molecular formula of a compound is C3H8, find its empirical formula.

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A_{2} B_{4}

. If its empirical formula weight is half of its vapour density. Determine the molecular formula of the compound.

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Introduction to Aldehydes and Ketones

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