Chemistry
Solid which undergoes sublimation is:
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The gas used in a refrigerator to cool water is ——–?
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Diamond is an allotropic form of ——–.
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The gas used in a refrigerator to cool water is ——–.
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Which of the following elements is NOT radioactive:
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Which gas is used in refrigerators for cooling?
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Which is an alloy
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Rust stains removed by
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Common element in glass, cement, quartz
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