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Which of the following statements are correct?
I. The presence of functional group disables systematization of organic compound into different classes.
II. In poly-functional compounds, one of the functional group is chosen as the principal functional group.
III. The order of priority for functional group is COCI > -COOR > -SO₃H> -COOH
IV. CH₂(OH)CH₂(OH) is named as ethan-1,2-diol.
Choose the correct option.

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I and II

II and IV

I, II and III

All of the above

answer is B.

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Detailed Solution

The presence of functional group enables systematization of organic compound into different classes. The order of priority of function groups is $- COOH > - {SO}_{3} H > - COOR > COCI$

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