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Match List - I with List - II.

List -I

(Metal)

List - II

(Emitted light wavelength(nm))
(A)  Li (I)  670.8
(B)  Na (II)  589.2
(C)  Rb (III)  780.0
(D)  Cs (IV)  455.5

Choose the most appropriate answer from the options given below:

Option: 1

\mathrm{(\mathrm{A})-(\mathrm{I}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{III}),(\mathrm{D})-(\mathrm{IV})}


Option: 2

(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})


Option: 3

\mathrm{\text { (A)-(III), (B)-(I), (C)-(II), (D)-(IV) }}


Option: 4

\mathrm{(\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{III})}


Answers (1)

best_answer

The correct match of metal with emitted wavelength is given below:

\mathrm{(A) \mathrm{Li}: 670.8 \mathrm{~nm}(I)}

\mathrm{(B) \mathrm{Na}: 589.2 \mathrm{~nm} (II)}\\

\mathrm{(C) Rb: 780 \mathrm{~nm} (III)}\\

\mathrm{(D) Cs: 455.5 \mathrm{~nm} ( \mathrm{IV})}

Hence correct answer is option (1)

Posted by

Riya

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