Match the compounds/elements given in Column I with uses given in C...

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Match the compounds/elements given in Column I with uses given in Column II.
Column I (Compound/element)
Column II (Use)
\( \mathrm{P} \)
(i) Lanthanoid oxide
(a) Production of iron alloy
\( \mathrm{W} \)
(ii) Lanthanoid
(b) Television screen
(iii) Misch metal
(c) Petroleum cracking
(iv) Magnesium based alloy is
(d) Lanthanoid metal + iron
constituent of
(v) Mixed oxides of
(e) Bullets
lanthanoids are employed
(f) In X-ray screen
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