318700
Which of the following is not a conductor of electricity?
1 Solid \(\mathrm{NaCl}\)
2 \(\mathrm{Cu}\)
3 Fused \(\mathrm{NaCl}\)
4 Brine solution
Explanation:
Conceptual Questions
KCET - 2018
CHXII01:THE SOLID STATE
318701
Cleavage readily occurs along planes in crystals of ionic solids because ions in the crystal are
1 Arranged in a regular fashion
2 Strongly bonded together
3 Weakly bonded together
4 Separated by a large distance
Explanation:
Most crystals show good cleavage because of their atoms, ions or molecules are arranged in planes. Hence, they can be easily cut with a knife.
CHXII01:THE SOLID STATE
318702
A solid with high electrial and thermal conductivity is
1 \(\mathrm{Si}\)
2 \(\mathrm{Li}\)
3 \(\mathrm{NaCl}\)
4 Ice
Explanation:
Out of the given substances, only "Li" has high electrial and thermal conductivity as "Li" is a metallic solid.
CHXII01:THE SOLID STATE
318703
Which of the statement is incorrect about metallic solids?
1 Positive ions are surrounded by a sea of free electrons.
2 These electrons are mobile.
3 Covalent bonds are strong and directional.
4 These are highly malleable and ductile.
Explanation:
In metallic solids, positive ions are surrounded by and held together by a sea of free electrons. These electrons are mobile and are evenly spread through out the crystal. These are highly malleable and ductile. Covalent bonds are strong and directional in covalent solids.
318700
Which of the following is not a conductor of electricity?
1 Solid \(\mathrm{NaCl}\)
2 \(\mathrm{Cu}\)
3 Fused \(\mathrm{NaCl}\)
4 Brine solution
Explanation:
Conceptual Questions
KCET - 2018
CHXII01:THE SOLID STATE
318701
Cleavage readily occurs along planes in crystals of ionic solids because ions in the crystal are
1 Arranged in a regular fashion
2 Strongly bonded together
3 Weakly bonded together
4 Separated by a large distance
Explanation:
Most crystals show good cleavage because of their atoms, ions or molecules are arranged in planes. Hence, they can be easily cut with a knife.
CHXII01:THE SOLID STATE
318702
A solid with high electrial and thermal conductivity is
1 \(\mathrm{Si}\)
2 \(\mathrm{Li}\)
3 \(\mathrm{NaCl}\)
4 Ice
Explanation:
Out of the given substances, only "Li" has high electrial and thermal conductivity as "Li" is a metallic solid.
CHXII01:THE SOLID STATE
318703
Which of the statement is incorrect about metallic solids?
1 Positive ions are surrounded by a sea of free electrons.
2 These electrons are mobile.
3 Covalent bonds are strong and directional.
4 These are highly malleable and ductile.
Explanation:
In metallic solids, positive ions are surrounded by and held together by a sea of free electrons. These electrons are mobile and are evenly spread through out the crystal. These are highly malleable and ductile. Covalent bonds are strong and directional in covalent solids.
318700
Which of the following is not a conductor of electricity?
1 Solid \(\mathrm{NaCl}\)
2 \(\mathrm{Cu}\)
3 Fused \(\mathrm{NaCl}\)
4 Brine solution
Explanation:
Conceptual Questions
KCET - 2018
CHXII01:THE SOLID STATE
318701
Cleavage readily occurs along planes in crystals of ionic solids because ions in the crystal are
1 Arranged in a regular fashion
2 Strongly bonded together
3 Weakly bonded together
4 Separated by a large distance
Explanation:
Most crystals show good cleavage because of their atoms, ions or molecules are arranged in planes. Hence, they can be easily cut with a knife.
CHXII01:THE SOLID STATE
318702
A solid with high electrial and thermal conductivity is
1 \(\mathrm{Si}\)
2 \(\mathrm{Li}\)
3 \(\mathrm{NaCl}\)
4 Ice
Explanation:
Out of the given substances, only "Li" has high electrial and thermal conductivity as "Li" is a metallic solid.
CHXII01:THE SOLID STATE
318703
Which of the statement is incorrect about metallic solids?
1 Positive ions are surrounded by a sea of free electrons.
2 These electrons are mobile.
3 Covalent bonds are strong and directional.
4 These are highly malleable and ductile.
Explanation:
In metallic solids, positive ions are surrounded by and held together by a sea of free electrons. These electrons are mobile and are evenly spread through out the crystal. These are highly malleable and ductile. Covalent bonds are strong and directional in covalent solids.
318700
Which of the following is not a conductor of electricity?
1 Solid \(\mathrm{NaCl}\)
2 \(\mathrm{Cu}\)
3 Fused \(\mathrm{NaCl}\)
4 Brine solution
Explanation:
Conceptual Questions
KCET - 2018
CHXII01:THE SOLID STATE
318701
Cleavage readily occurs along planes in crystals of ionic solids because ions in the crystal are
1 Arranged in a regular fashion
2 Strongly bonded together
3 Weakly bonded together
4 Separated by a large distance
Explanation:
Most crystals show good cleavage because of their atoms, ions or molecules are arranged in planes. Hence, they can be easily cut with a knife.
CHXII01:THE SOLID STATE
318702
A solid with high electrial and thermal conductivity is
1 \(\mathrm{Si}\)
2 \(\mathrm{Li}\)
3 \(\mathrm{NaCl}\)
4 Ice
Explanation:
Out of the given substances, only "Li" has high electrial and thermal conductivity as "Li" is a metallic solid.
CHXII01:THE SOLID STATE
318703
Which of the statement is incorrect about metallic solids?
1 Positive ions are surrounded by a sea of free electrons.
2 These electrons are mobile.
3 Covalent bonds are strong and directional.
4 These are highly malleable and ductile.
Explanation:
In metallic solids, positive ions are surrounded by and held together by a sea of free electrons. These electrons are mobile and are evenly spread through out the crystal. These are highly malleable and ductile. Covalent bonds are strong and directional in covalent solids.
