In the following question, a statement of assertion (A) is followed by a statement of reason (R):
(A): The ratio of molecular formula mass and empirical formula mass must be a natural number.
(R): The empirical formula can never be the same as the molecular formula.

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (a)

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If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (b)

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If Assertion is true statement but Reason is false, then mark (c)

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If both Assertion and Reason are false statements, then mark (d)

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Solution

The correct option is C If Assertion is true statement but Reason is false, then mark (c)
Statement 1 is true but statement 2 is false.
The ratio of molecular formula and empirical formula mass should be a natural number and cannot be equal to zero.
A compound can have empirical formula same as molecular formula when the ratio of molecular formula mass and empirical formula mass is 1.

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Similar questions

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. Assertion :Molecular formula shows the exact number of different types of atoms present in a molecule of a compound. Reason: Molecular formula can be obtained directly from empirical formula which represents the simplest whole number ratio of various atoms present in a compound.

Q. Empirical formula of a compound is

C H_{2} O

. Its molecular mass is

60

. The molecular formula will be :

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. A compound of relative molecular mass 34 and empirical formula

H O

has the molecular formula :

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In the following question, a statement of assertion (A) is followed by a statement of reason (R): (A): The ratio of molecular formula mass and empirical formula mass must be a natural number. (R): The empirical formula can never be the same as the molecular formula.

In the following question, a statement of assertion (A) is followed by a statement of reason (R):
(A): The ratio of molecular formula mass and empirical formula mass must be a natural number.
(R): The empirical formula can never be the same as the molecular formula.