Odd One Out

Concept: Most pairs follow the relation physical quantity : unit of measurement. Step 1:Analyze each option:

• (A) Volume : Litre → Unit of volume
• (B) Time : Second → Unit of time
• (C) Resistance : Ohm → Unit of resistance
• (D) Pressure : Barometer → Instrument used to measure pressure

Step 2:Identify the odd pair:

• (D) differs because it represents quantity : measuring instrument, not unit

Step 3:Final Answer: