STATEMENT-1: Two compounds cannot have the same empirical formula.

STATEMENT-2: Compounds that have the same empirical formula may have different molecular formulae.

Both the statements are true.

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Both the statements are false.

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Statement-1 is true, but statement-2 is false.

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Statement-1 is false, but statement-2 is true.

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Solution

The correct option is D Statement-1 is false, but statement-2 is true.
Statement-1 is false as two compounds can have the same empirical formula. For example, benzene and ethyne have the same empirical formula.
However, statement-2 is true as the compounds that have the same empirical formula may have a different molecular formula.

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Similar questions

Q. If two compounds have the same empirical formula but different molecular formula, they must have :

Give examples of compounds whose
(a) empirical formula is the same as the molecular formula.
(b) empirical formula is different from the molecular formula.

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. Which of the following compounds have same empirical formula?

Q. The molecular mass of a compound having empirical formula

C_{2} H_{5} O

90

. The molecular formula of the compound is :

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Empirical & Molecular Formula

Standard XII Chemistry

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STATEMENT-1: Two compounds cannot have the same empirical formula. STATEMENT-2: Compounds that have the same empirical formula may have different molecular formulae.

STATEMENT-1: Two compounds cannot have the same empirical formula.

STATEMENT-2: Compounds that have the same empirical formula may have different molecular formulae.