A. Sublimation B. Evaporation C. Filtration D. Crystallization
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A. Gas B. Liquid C. Solid D. Non of these
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A. Solution B. Homogenous mixture C. Heterogeneous mixture D. None of the above
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A. Sodium chloride in water B. Bromine in water C. Common salt and bromine D. Non of the above
A. Chlorine B. Bromine C. Iodine D. Mercury
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A. Cooling under high pressure B. Cooling under low pressure C. Decreasing temperature and increasing pressure D. Increasing temperature and decreasing pressure
A. Heating B. Colouring C. Swapping D. Crushing
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A. The spectrum of hydrogen atom only B. Spectrum of atom or ion containing one electron only C. The spectrum of hydrogen molecule D. The solar spectrum
A. The volume will remain unchanged B. The volume would be doubled C. The volume would be halved D. The volume would be increased four times
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A. Chuna B. Gypsum C. Sulphur D. None of these