Which is NOT a state of matter at room temperature?
ASolid
BPlasma
CGas
DLiquid
Answer & Solution
Correct answer: B. Plasma
1. The three common states of matter are solid, liquid and gas.
2. Plasma is the fourth state, found in stars and discharge tubes.
3. At ordinary room temperature plasma is not present in common substances.
4. So plasma is not a common room-temperature state.
_Source: Selina Concise Physics ICSE Class 8, Ch 1 'Matter'_
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