Choose the correct option for the two statements given below :
Statement I: Sharp melting point can be used to test the purity of the compound.
Statement II: Impurities cause a decrease in the melting point of the compound.

Both statements I and II are correct.

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Both statements I and II are incorrect.

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Statement I is correct and statement II is incorrect.

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Statement I is incorrect and statement II is correct.

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Solution

The correct option is A Both statements I and II are correct.
The purity of an organic compound can be tested by its sharp melting point. The impurities present in the compound can cause a decrease in melting point.

The presence of even a small amount of impurity will lower a compound's melting point by a few degrees and broaden the melting point temperature range.

Option A is correct.

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Choose the correct option for the two statements given below :Statement I: Sharp melting point can be used to test the purity of the compound.Statement II: Impurities cause a decrease in the melting point of the compound.

Choose the correct option for the two statements given below :
Statement I: Sharp melting point can be used to test the purity of the compound.
Statement II: Impurities cause a decrease in the melting point of the compound.