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JEE Main levelSingle correct optionDifficulty 2 of 3bn095

Which name-ion pair is correct?

A $OCN X^{-}$ - thiocyanate
B $N X_{3} X^{-}$ - azide
C $SCN X^{-}$ - cyanate
D $CN X^{-}$ - cyanate

Answer: B

N X_{3} X^{-}

is azide.

OCN X^{-}

is cyanate,

SCN X^{-}

is thiocyanate and

CN X^{-}

is cyanide, so the other three pairs are wrong.

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