Solid State - Online Test
Q1. Semi conductors have conductivity (in ) in the range of
Answer : Option C
Explaination / Solution:
They are in between conductors and insulators.
Q2. Yellow colour of NaCl crystals in sodium vapour is due to
Answer : Option D
Explaination / Solution:
It’s a F center defect.
Q3. Substances that are strongly attracted by applied magnetic field and can be permanently magnetized are
Answer : Option C
Explaination / Solution:
Ferromagnetic substance get permanently magnetised in applied Magnetic Field.
Q4. Dislocation defect is also known as
Answer : Option D
Explaination / Solution:
In frenkel defect cation gets dislocated from its position.
Q5. Solid X is a very hard electrical insulator in solid as well as in molten state. It melts at extremely high temperature. Solid X is a
Answer : Option B
Explaination / Solution:
Covalent solid doesnot conduct electricity in molten and solid state.
Q6. Nature of binding forces present in carbondioxide molecules in solid state are
Answer : Option D
Explaination / Solution:
O=C=O<−>−O−C+=O
Q7. What type of interaction hold the molecules together in a polar molecular solid?
Answer : Option A
Explaination / Solution:
Polar molecule will act as a dipole.
Q8. An atom located at the body center of a cubic unit cell is shared by
Answer : Option A
Explaination / Solution:
It is not been shared.
Q9. Ionization enthalpy is lowest in
Answer : Option B
Explaination / Solution:
Metals have low ionization energy because of there tendency to lose electrons.
Q10. Packing efficiency in body centered cubic structure is
Answer : Option B
Explaination / Solution:
