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Q)

Which of the following is not the mineral of iron ?

$\begin {array} {1 1} (A)\;Magnetite & \quad (B)\;Magnesite \\ (C)\;Siderite & \quad (D)\;Lemonite \end {array}$

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A)
Answer : Magnesite
Magnesite is $MgCO_3$
Haematite - $Fe_2O_3$
Magnetite $Fe_2O_4$
Limonite - $Fe_2O_3. H_2 O$
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