\( \mathrm{CoCl}_{2}+\mathrm{KNO}_{2}+\mathrm{CH}_{3} \mathrm{COOH} \longrightarrow[\mathrm{X}]+...

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\( \mathrm{CoCl}_{2}+\mathrm{KNO}_{2}+\mathrm{CH}_{3} \mathrm{COOH} \longrightarrow[\mathrm{X}]+\mathrm{H}_{2} \mathrm{O}+\mathrm{KCl}+\mathrm{CH}_{3} \mathrm{COOK}+\mathrm{NO} \)
(Unbalanced equation)
Which is / are correct for 'X'?
(A) \( X \) is a yellow crystalline solid which is insoluble in water.
(B) \( X \) is a green coloured compounds known as Rinman's green.
(C) IUPAC name of \( X \) is potassium hexanitrito \( -\mathrm{N} \) - cobaltate (II)
(D) The compound \( X \) is an inner orbital complex.
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