कौन सा बदलाव आसानी से उलटा किया जा सकता है?
Which change can be easily reversed?
Explanation opens after your attempt
A. पानी का जमनाFreezing of water
Concept
Ice can be heated back to water. Exam tip: reversible changes are often physical.
Why this answer is correct
The correct answer is A. पानी का जमना / Freezing of water. Ice can be heated back to water. Exam tip: reversible changes are often physical.
Exam Tip
बर्फ को गर्म करके पानी बनाया जा सकता है। परीक्षा में उलटने योग्य परिवर्तन अक्सर भौतिक होते हैं।
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