What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ? (1) Radium dating (2) Uranium dating (3) Carbon dating (4) Deuterium dating Answer : Carbon dating...
For determination of the age of which among the following is carbon dating method used ? (1) Fossils (2) Rocks (3) Trees (4) 1& 2 above Answer : 1& 2 above...
Which of the following is used in making smoke bombs? (1) Sulphur (2) Phosphorus (3) Hydrogen (4) Carbon Answer : Carbon...
Carbon-14 dating is based on the decay of 14C to 14N. What type of radioactive decay is associated with this nuclear reaction? Answer : ANSWER: b-RAY or b DECAY or ELECTRON EMISSION...
Which one of the following molecules exhibits resonance? w) Carbon Tetrachloride x) Carbonate ion y) Sulfur Dichloride z) Phosphorus Tribromide Answer : ANSWER: X -- CARBONATE ION...
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