Iron is rendered passive by the action of [IIT 1982; MP PET 1985; MP PMT 1987; DPMT 1984; KCET 1993]

Iron is rendered passive by the action of [IIT 1982; MP PET 1985; MP P

1.	Iron is rendered passive by the action of [IIT 1982; MP PET 1985; MP PMT 1987; DPMT 1984; KCET 1993]
A.	Conc. \[{{H}_{2}}S{{O}_{4}}\]
B.	Conc. \[{{H}_{3}}P{{O}_{4}}\]
C.	Conc. \[HCl\]
D.	Conc. \[HN{{O}_{3}}\]
Answer» E.

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Iron is rendered passive by the action of [IIT 1982; MP PET 1985; MP PMT 1987; DPMT 1984; KCET 1993]

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