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Empirical formula
Empirical formula of a substance provides the simplest whole number ratio among the atoms of the various elements exist in one molecule of the elements. For instance, empirical formula of glucose is CH2O, that is. for each carbon atom; there are two H-atoms and one oxygen molecules. Though its molecular expression is,C6H12O6
addition of different regent in sample of salt changes its colour
WHY ELEMENT BELONGING TO GROUP 3 TO 12 ARE CALLED TRANSACTION ELEMENT
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If molecular mass and atomic mass of sulphur are 256 and 32 respectively, its atomicity is: (1) 2 (2) 8 (3 )4 ( 4)16 Ans: 8
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ionic bond
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The magnetic quantum number of valence electron of sodium (Na) is: (1) 3 (2) 2 (3) 1 (4) 0 Ans: 0
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