A. Neutral B. Highly basic C. Amphoteric D. None
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A. Slag B. Flux C. Gangue D. Ore
A. Weber per ampere B. Volt second per ampere C. Joule per ampere² D. Ohm second
A. Concave mirror B. Convex mirror C. Plane mirror D. Concave lens
A. Centrifugation B. Plasmolysis C. Reverse osmosis D. Sedimentation
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A. Vitamin A B. Vitamin D C. Vitamin E D. Vitamin K
A. Cannot be produced from it B. Can be produced from it C. Can be extracted from it profitable D. Is very costly
A. Tetraethyl lead B. Tetraethyl bromide C. Both (A) and (B) D. None
A. Burning of rubber B. Burning of petrol C. Used of solar energy D. Coal