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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2002
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Q)

Which of the following is iso-electronic : -


( A ) $CN^ –, CO$
( B ) $NO_2^- ,CO_2$
( C ) $CO_2 , NO_2$
( D ) $SO_2 , CO_2$

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