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If the water molecules in 1g of water were uniformly distributed on earth surface , how many such water molecules would there be in 1 cm^2 of earth?Solution) No. of molecules in 1g of water : (1/18)*6.023x10^23 = 3.34 * 10^22.Area of earth ( consider it a sphere ) = 4x3.14x6400*10^5 cmTherefore your answer = 6.023x10^23/(8.03x10^9) = 7.5x10^13
Indicate the nature of bonding in diamond: (1) Covalent (2) Ionic (3) Coordinate (4) Hydrogen Ans: Covalent
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The molecule having one unpaired electron is: (1) NO (2) CO (3) CN - (4) Fe Ans: NO
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Question : (i) What do you understand by marine biodiversity? (ii) Give full nomenclature (common and scientific names) for species from marine fauna and species from mari
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