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Number of degenerate orbitals in a level...

Number of degenerate orbitals in a level of H-atom having ` E_n = (Rh)/9` :

A

`3`

B

`6`

C

`9`

D

`14`

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The correct Answer is:
C
`E =- (Rh).n^2 =- (Rh)/( N)=3`
` 3rd` orbit of H-atom having ` 1s, 2s, 2p, 3s, 3p, 3d` orbitals .
`:.` Degenerate orbitals ` =1 (3s ) + 3 (3p) = 5 (3d) =9`.
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