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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2011
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Q)

Acidified $K_2Cr_2O_7$ solution turns green when $Na_2SO_3$ is added to it. This is due to the formation of :


( A ) $Cr_2(SO_3)_3$
( B ) $Cr_2(SO_4)_3 $
( C ) $CrO_4^{2-}$
( D ) $CrSO_4$

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