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Alum
Soda powder
Bleaching powder
Borax powder
Which of the following one of the following metals is used to galvanise iron
Which of the following one of the following metals pollutes the air of a city having big number of automobiles
Which of the following one of the following minerals is found in Monazite sand -
Which of the following one of the following minerals is found in pure form
Which of the following one of the following nonmetals shows allotropy in the liquid state
Which of the following one of the following organic compound is used to remove stains of iron compounds
Which of the following one of the following reflects back more sunlight as compared to other three
Which of the following one of the following vegetable oils is used in the manufacture of paints
Which of the following one of the following wavelengths of light is most effective in photosynthesis -
Which of the following one of the following weeds is effective in controlling water pollution caused by industrial effluents -