Which one of the following pairs is NOT correctly matched?
1). Haematite: Copper
2). Bauxite: Aluminium
3). Monazite: Thorium
4). Pitchblende : Uranium
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1. Sodium bicarbonate is commercially known as
2. When a gas is turned into a liquid the process is called-
3. The photoelectric effect is described as the ejection of electrons from the surface of metal when-
4. An acid having basicity one is
5. Humburger effect is otherwise known as
6. The chemical bahaviour of an atom depends upon
7. The constituents of automobile exhaust that can cause cancer is are :
8. What are the main components of Brass Alloy?