Liquids and Solids | First Year Chemistry Past Paper MCQs | mosaicbro.com

Liquids and Solids | First Year Chemistry Past Paper MCQs

4 of 53 questions (Page 8 of 8)

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50 The existence of an element in more than one crystalline forms:
Correct Answer: A
Explanation: Allotropy (for elements) = Polymorphism (general term for any material).
51 Dry ice (Solid CO₂) is an example of:
Correct Answer: B
Explanation: Dry ice consists of CO₂ molecules held by London forces (molecular solid).
52 Glycerine decomposes at its:
Correct Answer: B
Explanation: Glycerol decomposes before boiling (~290°C).
53 Which one is a pseudo solid?
Correct Answer: D
Explanation: Glass is an amorphous solid (pseudo-solid) with no long-range order.
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