Chemistry · Some Basic Concepts of Chemistry
हिन्दीGiven below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): One mole of glucose (\( \text{C}_6\text{H}_{12}\text{O}_6 \)) and one mole of water (\( \text{H}_2\text{O} \)) contain the same number of molecules. Reason (R): One mole of any substance always contains exactly \( 6.02214076 \times 10^{23} \) elementary entities. In the light of the above statements, choose the correct answer from the options given below:
Correct answer · Option 1
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
By SI definition, 1 mole contains exactly \( 6.02214076 \times 10^{23} \) entities, so 1 mole of any molecular substance contains this same number of molecules.