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The hydrogenation of the vegetables oils takes place in the
presence of finely divided
1 Aluminium
2 Charcoal
3 Silica
4 Nickel
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In laundry soaps, a material called ‘filler’ is used. Which of the following is a ‘filler? 1 Talc 2 Sodium silicate 3 Soda ash 4 Sodium phosphate
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Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
2 Answers WBCS West Bengal Civil Service,
hai sir pls send me Appsc Assistant Statistical Officer(ASO) previous papers. And Apsrtc MST previous papers. Thanks you sir.
Biological Sciences 
