Question

You are given the following substances with their melting and bowling points. Identify the physical status of X, Y and Z at room temperature (30°C).

Substance Melting point(°C) Boiling point(°C)

X -219 -183

Y 119 445

Z -15 78

June 23, 2024

Answer

‘X’ is gas at room temperature.
‘Y’ is solid at room temperature.
‘Z’ is liquid at room temperature.

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