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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2012
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Q)

Sulphur trioxide can be obtained by which of the following reaction :


( A ) $S+H_2SO_4\underrightarrow{\qquad \Delta \qquad }$
( B ) $Fe_2+(SO_4)_3\underrightarrow{\qquad \Delta \qquad }$
( C ) $H_2SO_4+PCI\underrightarrow{\qquad \Delta \qquad }$
( D ) $CaSO_2+C\underrightarrow{\qquad \Delta \qquad }$

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