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Match the following:
Column-I
Column-II
\( \mathrm{P} \)
(a) \( \mathrm{SiO}_{2} \)
(p) Reacts with HF
W
(b) \( \mathrm{CN}^{-} \)
(q) Pseudo halide
(c) \( \mathrm{I}^{-} \)
(r) Gives compound with \( \mathrm{Cu}^{2+} \) via redox reaction
(d) \( \mathrm{N}_{2} \)
(s) Inert towards reaction
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