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34
Substance Q boils at 445 °C and is a yellow solid at room temperature.
Which temperature could be the melting point of pure Q?

A. -9°C
B.72 °C to 78 °C
a. 116 °C
D. 116 °C to 126 °C

Respuesta :

Answer:

116 °C

Explanation:

The given parameters of the Substance Q are;

The boiling point of Q = 445°

The substance Q is a solid at room temperature

Given that Q has a single fixed boiling point, Q, is suspected to be a pure substance, and it will therefore also have a fixed single melting point above room temperature;

Therefore, the best option is option C. 116 °C, which is above a single temperature value above 116 °C

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