The important ore of aluminium is
1). bauxite
2). cryolite
3). fluorspar
4). haematite
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2. If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by
3. Submarines move under water. They have engines that run on
4. Milk is a colloidal system in which:
6. The common refrigerant in domestic refrigerator is
7. The residue left after extracting juice from sugar beet and sugarcane is called
8. The blotting technique used to identify the isolated protein is ________