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The electronic configuration of a metal M is 1s2, 2s2, 2p6, 3s1, The formula of its oxides will be:
(1) MO
(2) M2O
(3) M2O2
(4) MO2
Ans: M2O
Which is the correct relationship between wavelength and momentum of particles: (1) γ= h/ p (2) Π h/ p (3) p= h/ γ (4) h= p/ γ Ans: γ= h/ p
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Following Hund's rule which element contains six unpaired electron: (1) Fe (2) Co (3) Ni (4) Cr Ans: Cr
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