LIST I Elements | LIST II Colour imparted to the flame | ||
A | K | 1 | Brick Red |
B | Ca | 2 | Violet |
C | Sr | 3 | Apple Green |
D | Ba | 4 | Crimson Red |
Correct answer is (d) A-II, B-I, C-IV, D-III
The flame test is used to identify elements based on the characteristic colors they emit when heated. The correct matching is:
Thus, the correct matching corresponds to option (4).
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.