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Which element on each substance is responsible for the flame color? (a) NaCl            ...

Which element on each substance is responsible for the flame color?

(a) NaCl                            [ Select ]                       ["Na+" or "Cl-"]      

(b) LiCl                            [ Select ]                       ["Li+" or "Cl-"]      

(c) CaCl2                             [ Select ]                       ["Ca2+"or "Cl-"]      

(d) KCl                            [ Select ]                       ["K+"or "Cl-"]      

   

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Answer #1

Ans :

Usually cations in salt are responsible for the flame color , as anions even if they emit energy is not visible to us.

So here , the elements of substances responsible for the flame color are :

a) NaCl : Na+

b) LiCl : Li+

c) CaCl2 : Ca2+

d) KCl : K+

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