NEET Test Series from KOTA - 10 Papers In MS WORD
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The Solid State
31868
Which one of the following is a good conductor of electricity
1 Silicon
2 Amorphous carbon
3 Diamond
4 Graphite
Explanation:
Pure elemental silver is the best conductor of electricity. Copper, gold, aluminium and graphite are good conductors of electricity.
The Solid State
31869
A crystalline solid
1 Changes abruptly from solid to liquid when heated
2 Has no definite melting point
3 Undergoes deformation of its geometry easily
4 Has an irregular \(3-\) dimensional arrangements
Explanation:
\((a)\) In crystalline solid there is perfect arrangement of the constituent particles only at \(0\,K\). As the temperature increases the chance that a lattice site may be unoccupied by an ion increases. As the number of defects increases with temperature solid change in liquid.
The Solid State
31870
Diamond is an example of
1 Solid with hydrogen bonding
2 Electrovalent solid
3 Covalent solid
4 Glass
Explanation:
\((c)\) Diamond is a covalent solid in which constituent particles are atoms.
The Solid State
31871
The solid \(NaCl\) is a bad conductor of electricity since
1 In solid \(NaCl\) there are no ions
2 Solid \(NaCl\) is covalent
3 In solid \(NaCl\) there is no velocity of ions
4 In solid \(NaCl\) there are no electrons
Explanation:
\((c)\) Solid \(NaCl\) is a bad conductor of electricity because ions are not free to move.
31868
Which one of the following is a good conductor of electricity
1 Silicon
2 Amorphous carbon
3 Diamond
4 Graphite
Explanation:
Pure elemental silver is the best conductor of electricity. Copper, gold, aluminium and graphite are good conductors of electricity.
The Solid State
31869
A crystalline solid
1 Changes abruptly from solid to liquid when heated
2 Has no definite melting point
3 Undergoes deformation of its geometry easily
4 Has an irregular \(3-\) dimensional arrangements
Explanation:
\((a)\) In crystalline solid there is perfect arrangement of the constituent particles only at \(0\,K\). As the temperature increases the chance that a lattice site may be unoccupied by an ion increases. As the number of defects increases with temperature solid change in liquid.
The Solid State
31870
Diamond is an example of
1 Solid with hydrogen bonding
2 Electrovalent solid
3 Covalent solid
4 Glass
Explanation:
\((c)\) Diamond is a covalent solid in which constituent particles are atoms.
The Solid State
31871
The solid \(NaCl\) is a bad conductor of electricity since
1 In solid \(NaCl\) there are no ions
2 Solid \(NaCl\) is covalent
3 In solid \(NaCl\) there is no velocity of ions
4 In solid \(NaCl\) there are no electrons
Explanation:
\((c)\) Solid \(NaCl\) is a bad conductor of electricity because ions are not free to move.
31868
Which one of the following is a good conductor of electricity
1 Silicon
2 Amorphous carbon
3 Diamond
4 Graphite
Explanation:
Pure elemental silver is the best conductor of electricity. Copper, gold, aluminium and graphite are good conductors of electricity.
The Solid State
31869
A crystalline solid
1 Changes abruptly from solid to liquid when heated
2 Has no definite melting point
3 Undergoes deformation of its geometry easily
4 Has an irregular \(3-\) dimensional arrangements
Explanation:
\((a)\) In crystalline solid there is perfect arrangement of the constituent particles only at \(0\,K\). As the temperature increases the chance that a lattice site may be unoccupied by an ion increases. As the number of defects increases with temperature solid change in liquid.
The Solid State
31870
Diamond is an example of
1 Solid with hydrogen bonding
2 Electrovalent solid
3 Covalent solid
4 Glass
Explanation:
\((c)\) Diamond is a covalent solid in which constituent particles are atoms.
The Solid State
31871
The solid \(NaCl\) is a bad conductor of electricity since
1 In solid \(NaCl\) there are no ions
2 Solid \(NaCl\) is covalent
3 In solid \(NaCl\) there is no velocity of ions
4 In solid \(NaCl\) there are no electrons
Explanation:
\((c)\) Solid \(NaCl\) is a bad conductor of electricity because ions are not free to move.
31868
Which one of the following is a good conductor of electricity
1 Silicon
2 Amorphous carbon
3 Diamond
4 Graphite
Explanation:
Pure elemental silver is the best conductor of electricity. Copper, gold, aluminium and graphite are good conductors of electricity.
The Solid State
31869
A crystalline solid
1 Changes abruptly from solid to liquid when heated
2 Has no definite melting point
3 Undergoes deformation of its geometry easily
4 Has an irregular \(3-\) dimensional arrangements
Explanation:
\((a)\) In crystalline solid there is perfect arrangement of the constituent particles only at \(0\,K\). As the temperature increases the chance that a lattice site may be unoccupied by an ion increases. As the number of defects increases with temperature solid change in liquid.
The Solid State
31870
Diamond is an example of
1 Solid with hydrogen bonding
2 Electrovalent solid
3 Covalent solid
4 Glass
Explanation:
\((c)\) Diamond is a covalent solid in which constituent particles are atoms.
The Solid State
31871
The solid \(NaCl\) is a bad conductor of electricity since
1 In solid \(NaCl\) there are no ions
2 Solid \(NaCl\) is covalent
3 In solid \(NaCl\) there is no velocity of ions
4 In solid \(NaCl\) there are no electrons
Explanation:
\((c)\) Solid \(NaCl\) is a bad conductor of electricity because ions are not free to move.
