Why we use DPPH in ESR and DPH in fluorescence spectroscopy?
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Give lewis dot structure for HBrO4?
How would you use a colorimetre to find the concentration ofgreen complex ion in solution?
How chromium hydroxide shows amphoteric character?
why do antimony and bismuth have the same electron affinities?
A catalyst
what are transitional elements?
To make phosphorus tetraoxide from phosphorus why pure oxygen isn't taken and why mixture of oxygen and nitrogen is taken?
Out of (CH3)3C- and (CH3)2CH- carboanion, which is more stable and why?
which element is good conductor of electricity but bad conductor of heat
which gas fill the cfl and light bulbs?
what are the uses of hydrogen?
what is the formulae of gypsum.