QBManager

The Solid State

31865 $N a C l$ is an example of

1 Covalent solid

2 Ionic solid

3 Molecular solid

4 Metallic solid

Explanation:

$(b)$ $N a C l$ is a ionic solid in which constituent particles are positive $(N a^{+})$ and negative $(C l^{-})$ ions.

The Solid State

31918 Bravais lattices are of

1

8

types

2

12

types

3

14

types

4

9

types

Explanation:

(c) $14$ kinds of Bravais lattices (space lattices) are possible in a crystal.

The Solid State

31858 The three states of matter are solid, liquid and gas. Which of the following statement are true about them

1 Gases and liquids have viscosity as a common property

2 The molecules in all the three states possess random translational motion

3 Gases cannot be converted into solids without passing through the liquid phase

4 Solids and liquids have vapour pressure as a common property

Explanation:

$(a)$ Both gases and liquids possess fluidity and hence viscosity molecules in the solid state do not have translational motion.

The Solid State

31859 A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behaviour is the characteristic of substances forming

1 Isomeric crystals

2 Liquid crystals

3 Isomorphous crystals

4 Allotropic crystals

Explanation:

$(b)$ It is a characteristic of liquid crystal.

The Solid State

31865 $N a C l$ is an example of

1 Covalent solid

2 Ionic solid

3 Molecular solid

4 Metallic solid

Explanation:

$(b)$ $N a C l$ is a ionic solid in which constituent particles are positive $(N a^{+})$ and negative $(C l^{-})$ ions.

The Solid State

31918 Bravais lattices are of

1

8

types

2

12

types

3

14

types

4

9

types

Explanation:

(c) $14$ kinds of Bravais lattices (space lattices) are possible in a crystal.

The Solid State

31858 The three states of matter are solid, liquid and gas. Which of the following statement are true about them

1 Gases and liquids have viscosity as a common property

2 The molecules in all the three states possess random translational motion

3 Gases cannot be converted into solids without passing through the liquid phase

4 Solids and liquids have vapour pressure as a common property

Explanation:

$(a)$ Both gases and liquids possess fluidity and hence viscosity molecules in the solid state do not have translational motion.

The Solid State

31859 A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behaviour is the characteristic of substances forming

1 Isomeric crystals

2 Liquid crystals

3 Isomorphous crystals

4 Allotropic crystals

Explanation:

$(b)$ It is a characteristic of liquid crystal.

The Solid State

31865 $N a C l$ is an example of

1 Covalent solid

2 Ionic solid

3 Molecular solid

4 Metallic solid

Explanation:

$(b)$ $N a C l$ is a ionic solid in which constituent particles are positive $(N a^{+})$ and negative $(C l^{-})$ ions.

The Solid State

31918 Bravais lattices are of

1

8

types

2

12

types

3

14

types

4

9

types

Explanation:

(c) $14$ kinds of Bravais lattices (space lattices) are possible in a crystal.

The Solid State

31858 The three states of matter are solid, liquid and gas. Which of the following statement are true about them

1 Gases and liquids have viscosity as a common property

2 The molecules in all the three states possess random translational motion

3 Gases cannot be converted into solids without passing through the liquid phase

4 Solids and liquids have vapour pressure as a common property

Explanation:

$(a)$ Both gases and liquids possess fluidity and hence viscosity molecules in the solid state do not have translational motion.

The Solid State

31859 A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behaviour is the characteristic of substances forming

1 Isomeric crystals

2 Liquid crystals

3 Isomorphous crystals

4 Allotropic crystals

Explanation:

$(b)$ It is a characteristic of liquid crystal.

The Solid State

31865 $N a C l$ is an example of

1 Covalent solid

2 Ionic solid

3 Molecular solid

4 Metallic solid

Explanation:

$(b)$ $N a C l$ is a ionic solid in which constituent particles are positive $(N a^{+})$ and negative $(C l^{-})$ ions.

The Solid State

31918 Bravais lattices are of

1

8

types

2

12

types

3

14

types

4

9

types

Explanation:

(c) $14$ kinds of Bravais lattices (space lattices) are possible in a crystal.

The Solid State

31858 The three states of matter are solid, liquid and gas. Which of the following statement are true about them

1 Gases and liquids have viscosity as a common property

2 The molecules in all the three states possess random translational motion

3 Gases cannot be converted into solids without passing through the liquid phase

4 Solids and liquids have vapour pressure as a common property

Explanation:

$(a)$ Both gases and liquids possess fluidity and hence viscosity molecules in the solid state do not have translational motion.

The Solid State

31859 A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behaviour is the characteristic of substances forming

1 Isomeric crystals

2 Liquid crystals

3 Isomorphous crystals

4 Allotropic crystals

Explanation:

$(b)$ It is a characteristic of liquid crystal.