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) Blue
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) Blue |
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1 Answer
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This is a matching type question as classified in NCERT Exemplar
(i) → (f); (ii) → (d); (iii) → (b) : (iv) → (c) ; (v) → (e); (vi) → (a)
All alkali metal and alkaline earth metals except beryllium and magnesium gives characteristic color when introduced into flame. Due to released energy being absorbed in the visible region, alkali metals and alkaline earth metals gives characteristic color.
(i) Caesium imparts blue color when introduced into flame.
(ii) Sodium imparts yellow color when introduced into flame.
(iii) Potassium imparts violet color when introduced into flame.
(iv) Calcium imparts brick red col
...more
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