Atomic Structure Previous Year Questions asked in JET Examination ( Entrance Examination after 10+2 Science)
1. The outer electronic configuration of chromium is: -
(1) 3d4 4s2
(2) 3d5 4s0
(3) 3d6 4s1
(4) 3d5 4s1 Answer:- (4)
Øksfe;e dk ckáŸke bysDVªksfu; foU;kl gSa%&
(1) 3d4 4s2
(2) 3d5 4s0
(3) 3d6 4s1
(4) 3d5 4s1 mŸkj%& (4)
[JET-2020]
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2. In a given atom no two electrons can have same set of four quantum numbers. This is called:-
(1) Hund’s Rule
(2) Pauli’s Exclusion Principle
(3) Uncertainty Principle
(4) Aufbau’s Principle Answer:- (2)
fdlh ijek.kq esa mifLFkr nks bysDVªkWuksa dh pkjksa DokaVe la[;k,¡ ,d leku ugha gks ldrh] ;g dgykrk gSa%&
(1) gqaM dk fu;e
(2) ikmyh viotZu fl}kar
(3) vfuf'pr~rk dk fl}kar
(4) vkWQckÅ dk fl}kar mŸkj%& (2)
[JET-2020]
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3. The magnetic quantum number represents: -
(1) Size of the orbital
(2) Shape of orbital
(3) Orbital angular momentum
(4) Spatial Orientation of orbital Answer:- (4)
pq¡cfd; DokaVe la[;k n'kkZrh gSa%&
(1) d{kd ds vkdkj dks
(2) d{kd ds vk—fr dks
(3) df{k; dks.kh; laosx dks
(4) d{kd dh f=foe vkdk'k dh O;oLFkk dk mŸkj%& (4)
[JET-2019]
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