1. Tardigrade
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  3. Chemistry
  4. The one that is not a carbonate is :

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Q. The one that is not a carbonate is :

JEE MainJEE Main 2019General Principles and Processes of Isolation of Elements

Solution:

1. Bauxite- $AlO _{ x }( OH )_{3-2 x }$ where $0 < x < 1$
2. Siderite $- FeCO _3$
3. Calamine $- ZnCO _3$
4. Malachite $- CuCO _3 \cdot Cu ( OH )_2$