Atomic Structure MCQ Series Part 10

Atomic Structure MCQ Series Part 10

1. Which of the following does not concern nuclear stability

(a)    Coulombic forces

(b)   Valency electrons

(c)    n/p ratio

(d)   p-p repulsion

2. The size of an atoms is of the order of

(a)    10–9cm

(b)   10-3 cm

(c)    10-6 cm

(d)   10-2 cm

3. A p-orbital in absence of the magnetic field is

(a)    six fold degenerate

(b)   Two fold degenerate

(c)    Three fold degenerate

(d)   Non degenerate

4. An electron in one Bohr stationary orbit can go to a higher stationary orbit

(a)    by emission of electromagnetic radiation

(b)   without any emission or absorption of electromagnetic radiation

(c)    with absorption of electromagnetic radiation

(d)   with absorption of electromagnetic radiation of a particular frequency

5. The number of lobes generally drawn to represent a d-orbital is

(a)    one

(b)   two

(c)    four

(d)   eight

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