| Column I(i) Cs
(ii) Na (iii) K (iv) Ca (v) Sr (vi) Ba |
Column II(a) Apple green
((b) Violet (c) Brick red (d) Yellow (e) Crimson red (f) Blue |
Answer:
(i) is f
(ii) is d
(iii) is b
(iv) is c
(v) is e
(vi) is a
Alkali and alkaline earth metals produce colour in the visible spectrum after losing one or two electrons, depending on their composition. Colors such as yellow, violet, blood red, and apple green are produced by the elements Na and K.