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NEETChemistrySome Basic Concepts of Chemistry

Assertion (A): The molar mass of a compound is the mass of one mole of that compound in grams. Reasoning (R): Molar mass can be calculated using the formula Molar Mass (= mass of the sample number of moles )

Options

  1. ABoth (A ) and (R ) are true, and (R ) is the correct explanation for A.
  2. BBoth A and R are true, but R is not the correct explanation for A.
  3. CA is true, but R is false.
  4. DA is false, but R is true.

Correct answer

A. Both (A ) and (R ) are true, and (R ) is the correct explanation for A.

Step-by-step solution

- Assertion (A) is true; one mole of any ideal gas occupies 22.4 liters at STP. - Reasoning (R) is true because this volume results from the ideal gas law ((P V=n R T) ). - Therefore, the correct option is A) Both (A ) and (R ) are true, and (R ) is the correct explanation for A.

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