Class 11

2. Structure of atom question bank (Chemistry)

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Q1.

What is the maximum number of orbitals that can be identified with the following quantum numbers?  
\( n = 3, \ell = 1, m_\ell = 0 \)  

(A)
1
(B)
2
(C)
3
(D)
4
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Q2.

Calculate the energy in joule corresponding to light of wavelength 45 nm:  
(Planck’s constant \( h = 6.63 \times 10^{-34} \, \text{Js} \);  
speed of light \( c = 3 \times 10^8 \, \text{ms}^{-1} \))  

(A)
\( 6.67 \times 10^{15} \)
(B)
\( 6.67 \times 10^{11} \)
(C)
\( 4.42 \times 10^{-15} \)
(D)
\( 4.42 \times 10^{-18} \)
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