Which of the following statement is not correct : \( \mathrm{P} \) (A) \( \mathrm{Fe}, \mathrm{N...

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Which of the following statement is not correct :
\( \mathrm{P} \)
(A) \( \mathrm{Fe}, \mathrm{Ni}, \mathrm{Co} \) form interstetial compound
W.
(B) \( \mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2} \) is called Bordeaux mixture
(C) Verdigris is basic copper acetate \( \left[\mathrm{Cu}\left(\mathrm{COOCH}_{3}\right)_{2} \mathrm{Cu}(\mathrm{OH})_{2}\right] \)
(D) 24 carat gold is an alloy of \( \mathrm{Au} \) and \( \mathrm{Cu} \)
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