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			Can work be done on a system if there is no motion? ... 
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			Which among the following anion is more stable ... 
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			The three points (– 2, 2), (8, – 2) and (– 4, – 3) are the vertices ... 
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			If the 10th term of a geometric progression is 9 and 4th term is 4, then its 7th term is ...