JEE Main 202325 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2023
- Date
- 25 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- s Block Elements
JEE Main 2023 · 25 January · Morning Shift · Chemistry · s Block Elements
Match List I with List II List I List II Elements Colour imparted...
Match List I with List II
| List I | List II | ||
| Elements | Colour imparted to the flame | ||
| A | I | Brick Red | |
| B | II | Violet | |
| C | III | Apple Green | |
| D | IV | Crimson Red | |
Choose the correct answer from the options given below:
Options
- AA-II, B-I, C-III, D-IV
- BA-II, B-IV, C-I, D-III
- CA-II, B-I, C-IV, D-III
- DA-IV, B-III, C-II, D-I
Correct answer
C. A-II, B-I, C-IV, D-III
Step-by-step solution
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