Steel contains
1). 12% carbon
2). 5-10% carbon
3). more than 10% carbon
4). no carbon
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1. Which of the following elements has the lowest melting point?
2. Detergents used for cleaning clothes and utensils contain
3. Which of the following is an iron ore
4. LPG is a mixture of _______.
5. 'Atomic theory' of matter was given by
6. Which one of the following does not form oxyacid ?
7. In which industry Potassium Nitrate is used commercially?
10. Which halide is used in making sensitive emulsion on photograhic film?