A pure solid usually melts?

A pure solid usually melts?
  • A.
    over a wide range of temperature
  • B.
    over a narrow range of temperature
  • C.
    at a lower temperature than the impure one
  • D.
    at the same temperature as the impure one
Correct Answer: Option B
Explanation
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If O is the centre of the circle, A. 70o B. 75o C. 105o D. 140o E. 150o…
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