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I have a question. This was given in ANCQ this year. Please help me out. Tell me the correct answer.

Note by Sai Ram
3 months, 1 week ago

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D Andrea Palma · 3 weeks, 2 days ago

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@Andrea Palma procedure ? Sai Ram · 3 weeks, 1 day ago

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@Sai Ram Every material exists in liquid state exatly when its temperature is BETWEEN its melting point and its boiling point. Now -140°C is between -169 and -104 so the ethene at -140°C is in liquid state. -140°C is also between -185 and -48 so the propene at -140°C is also liquid. Same for pentene. The butene at -140°C is solid because -140°C is BELOW its melting point -138. So exactly 3 substances are liquid at -140°(, while the butene is solid at -140°C. Andrea Palma · 3 weeks, 1 day ago

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@Andrea Palma Thanks..!! Sai Ram · 1 week, 6 days ago

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Please help me its urgent..... Sai Ram · 3 months, 1 week ago

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