यदि मोलरता 0.25 है और आयतन 2 लीटर है, तो विलेय के मोल कितने हैं?
If molarity is 0.25 and volume is 2 litres, how many moles of solute are present?
Explanation opens after your attempt
A. 0.5 मोल0.5 mole
Concept
Moles = molarity × volume.
Why this answer is correct
Moles = 0.25 × 2 = 0.5.
Exam Tip
If volume is in litres, multiply directly. चरण 1: मोल = मोलरता × आयतन। चरण 2: मोल = 0.25 × 2 = 0.5। चरण 3: आयतन लीटर में हो तो सीधे गुणा करें।
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