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26.
Which of the following is an example of metallic solid?
- A.CO2
- B.I2
- C.Ni
- D.AgCl
- Answer
- Report
Answer : [C]
27.
A sea of free electrons is present in _______.
- A.ionic solids
- B.metallic solids
- C.non-polar molecular solids
- D.polar molecular solids
- Answer
- Report
Answer : [B]
28.
Which type of solid crystals will conduct heat
and electricity?
- A.Polar molecular
- B.Non-polar molecular
- C.Metallic
- D.Ionic
- Answer
- Report
Answer : [C]
29.
____________solids are tougher than other solids.
- A.Metallic
- B.Ionic
- C.Molecular
- D.Covalent
- Answer
- Report
Answer : [A]
30.
The lustre of a metal is due to _______.
- A.its high density
- B.its high polishing
- C.its chemical inertness
- D.presence of free electrons
- Answer
- Report
Answer : [D]
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