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Silica gel
Polystyrene
Nacl
Naco3
Which one of the following is the correct sequence of change in colours when a turmeric stain on white clothes is scrubbed by soap and then washed with water
Which one of the following is the important ore magnesium?
Which one of the following is the major constituent of biogas
Which one of the following is the most characteristic property of an element?
Which one of the following is the permissible noise level of industrial areas in India during day time ?
Which one of the following is the petroleum wax?
Which one of the following lubricants is most suitable for drawing mild steel wires?
Which one of the following materials is very hard and very ductile?
Which one of the following noble gases is not found in atmosphere?
Which one of the following pairs does not have the same dimension