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  • Match the elements given in Column I with the colour they impart to the flame given in Column II. Column I (i) Cs Column II (a) Apple green

Match the elements given in Column I with the colour they impart to the flame given in Column II.

Column I Column II
(i) Cs (a) Apple green
(ii) Na (b)Violet
(iii) K (c) Brick red
(iv) Ca (d) Yellow
(v)Sr (e) Crimson red
(vi) Ba (f) Red


 

Answers (1)

(i) – (f); (ii)- (d); (iii)- (b); (iv)- (c); (v)-(e ); (vi) –(a)

The heat from the flame excites the outermost orbital electron to a higher energy level. When the excited electron comes back to the ground state, there is the emission of radiation in the visible region which gives characteristic colour to Bunsen flame.

 

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