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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
Credit Cards Credit cards are offered by banks, as well as other institutions such as credit unions. There are numerous credit cards currently available in the market, each wi
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Explain about the Impact extrusion Blank is placed over the die and pressed by punch. Metal is squirted upward round the punch. Thickness of the part is fixed by the gap bet
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