JEE Main 2022 · 29 Jun · Shift 1 · Chemistry Q69

ChemistryList match+4 / -1Question 69 of 90

Match List - I with List - II.

Choose the most appropriate answer from the options given below :

List - I (Metal)

List - II (Emitted light wavelength (nm))

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

Answer and worked solution

Official answer: A

Flame lines. Li 670.8 nm, Na 589.2 nm, Rb 780.0 nm, Cs 455.5 nm.

(A)

Topics:Alkali metals Flame and borax bead tests

JEE Main 2022 · 29 Jun · Shift 1, Chemistry question 69