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Q. Illustrate Structure of the Water Molecule? Ans. A water molecule is composed of two hydrogen atoms and one oxygen atom covalently bonded together. The following anim

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Which of the following has the maximum number of unpaired electrons: (1)  Mg 2+                              (2) Ti 3+          (3) V 3+                             (

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Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w

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The ratio of area covered by second orbital to the first orbital is: (1) 1 : 2  (2) 1 : 16       (3) 8 : 1           (4) 16 : 1 Ans:  16 : 1

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Q. Extraction of f-block element ? As all the lanthanides occur together in nature, their extraction involves two main steps: (i)   separation from one another and (ii) reducti

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