Q26 / 90 · JEE Main 2019 (09 Apr Shift 2) · Chemistry

The one that is not a carbonate are is:

A
malachite
Correct answer
B
bauxite
C
calamine
D
siderite

Solution

Bauxite is an oxide ore of Al. Its formula is ${Al}_{2} O_{3}$ .

Formula of malachite is $({Cu}_{2} ({CO}_{3}) (OH)_{2})$

Formula of calamine is ${ZnCO}_{3}$

Formula of calamine is ${FeCO}_{3}$

Hence, the correct answer is option: 'B'.

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