JEE · NEET Previous Year Question

$Which of the following name formula combinations is not correct ? Formula Name$

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

A $K_{2} [Pt (C N)_{4}] Potasium tetracyanoplatinate (II)$
B $[Mn(CN)_{5}]^{2-} Pentacyanomagnate (II) ion$
C $K[Cr(N H_{3})_{2} C l_{4}] Potassium diammine tetrachlorochromate (III)$
D $[Co (N H_{3})_{4} (H_{2} O)l] S O_{4} Tetraammine aquaiodo cobalt (III) sulphate$

Correct answer: B

Solution

(b) Correct Name of (Mn (CN)_{5})^{2 -} is Pentacyanomagnate (III) ion.