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Question: Answered & Verified by Expert

Match List I with List II

List I List II
Elements Colour imparted to the flame
A K I Brick Red
B Ca II Violet
C Sr III Apple Green
D Ba IV Crimson Red

Choose the correct answer from the options given below:

Chemistrys Block ElementsJEE MainJEE Main 2023 (25 Jan Shift 1)
Options:
  • A A-II, B-I, C-III, D-IV
  • B A-II, B-IV, C-I, D-III
  • C A-II, B-I, C-IV, D-III
  • D A-IV, B-III, C-II, D-I
Solution:
2709 Upvotes Verified Answer
The correct answer is: A-II, B-I, C-IV, D-III

The colours of the flame are produced because of the movement of the electrons in the metal ions present in their salts. Calcium exhibits a brick-red colour. Strontium exhibits crimson colour. And the barium exhibits an apple green colour. 

K is an alkali metal. Potassium is colourless or white but when it is heated, it produces a violet flame due to the excitation of the electrons to the higher energy orbitals. Potassium burns with a light purple-coloured flame.

So, the correct option is C

 

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