Match the List-I with List- II.
Choose the most appropriate answer from the options given below:
Choose the most appropriate answer from the options given below:
Answer: A → I, B → II, C → III, D → IV
Solution
The flame test colors and corresponding wavelengths for alkali metals are characteristic properties:
These values are standard data from NCERT and match the pairs: (A)-(I), (B)-(II), (C)-(III), (D)-(IV).
Answer: (A)
- Li: Crimson red, λ = 670.8 nm
- Na: Yellow, λ = 589.2 nm
- Rb: Red-violet, λ = 780.0 nm
- Cs: Blue, λ = 455.5 nm
These values are standard data from NCERT and match the pairs: (A)-(I), (B)-(II), (C)-(III), (D)-(IV).
Answer: (A)
JEE Main · 2022 · 29 Jun 2022 · Shift 1 · Match the columns