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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2001
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Q)
3 moles of ethanol reacts with one mole of phosphorus tribromide to form 3 moles of bromo-ethane and one mole of X. Which of the following is X ?
( A ) $HPO_3$
( B ) $H_3PO_2$
( C ) $H_3PO_4$
( D ) $H_3PO_3$
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