Identify P and Q:
P: I am the most common fire extinguisher but not suitable for oil, petrol, and electrical fires. I am heavier than oil and also, conduct electricity.
Q: I am an excellent fire extinguisher and most suitable for oil, petrol, and electrical fires. I also, form a blanket around the fire and bring down the temperature of the fuel.

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

P - H₂ Q- CO₂

P - CO₂ Q- H₂O

P- CO₂ Q- O₂

P - H₂O Q- CO₂

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

P is water ( H₂O) and Q is carbon dioxide (CO₂)

Water is heavier than oil and petrol and sinks below them, and oil and petrol keep burning on top. Water is a good conductor of electricity. So P is water. For fires involving electrical equipment and inflammable materials like petrol, carbon dioxide (CO₂) is the best extinguisher. So Q is carbon dioxide.

Watch 3-min video & get full concept clarity