SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC chapter 1 - Solid State [Latest edition]

The following types of solids contain molecules as constituent particles?

The following crystal systems contain 4 Bravais lattices?

An octahedral void is surrounded by ________.

Which of the following is an amorphous solid?

A paired cation-anion vacancy is called _______.

The unit cell of a simple cubic system has atoms at the eight corners. Hence, number of atoms in a unit cell is ______.

In crystal lattice formed by primitive unit cell, the space occupied by particles is ______.

The coordination number of spheres in the hcp lattice in three dimension is ______.

A compound is made up of two elements X and Y and crystallizes in bcc structure. Atoms of X are present at the corners of the cube. Atoms of Y are present at the centre of the cube. The formula of the compound is ______.

Sodium crystallizes in bcc structure. If the edge length of unit cell is 4.3 × 10^-8 cm, the radius of Na atom is ______.

Write the effect on density of a substance in the Frenkel defect?

Name the bravais lattice in the triclinic system.

What are diamagnetic substances?

Answer the following in one or two sentences.

Mention two properties that are common to both hcp and ccp lattices.

Write the relationship between radius of atom and edge length of fcc unit cell.

Draw diagram of bcc unit cell.

The number of tetrahedral voids are formed if the number of atoms in a crystal is N/2.

Give the percentage of empty space in bcc lattice.

If the total volume of a simple cubic unit cell is 6.817 × 10^-23 cm³, what is the volume occupied by particles in the unit cell?

The number of octahedral voids formed in 0.5 mol of a compound forming hcp structure?

Distinguish between crystalline solid and amorphous solid.

Classify the following solid:

Pb

Classify the following solid:

MgF₂

Classify the following solid:

SO₂

Classify the following solid:

Quartz

Find the number of atoms in the fcc unit cell.

Explain with diagram, the vacancy defect.

Calculate the number of unit cells in 0.3 g of a species having density of 8.5 g/cm³ and unit cell edge length 3.25 × 10^-8 cm.

A compound crystallizes in bcc structure. What is unit cell edge length if diameter of its atom is 120 pm?

Calculate the packing efficiency for bcc lattice.

In case of hcp structure, how are spheres in first, second and third layers arranged?

A substance crystallizes in fcc structure. The unit cell edge length is 367.8 pm. Calculate the molar mass of the substance if its density is 21.5 g/cm³.

The unit cell of Na is bcc and its density is 0.97 g/cm³. What is the radius of a sodium atom if the molar mass of Na is 23 g/mol?

How are nonstoichiometric point defects classified? Explain with diagram the metal deficiency defect.

Explain with one example each, the diamagnetic, paramagnetic and ferromagnetic substances.

What are nonstoichiometric point defects?

Explain with a diagram the formation of F-centers

Give the classification of stoichiometric point defects.

What is a substitutional impurity defect?

Explain solid solutions of metals and vacancy through aliovalent cations.

Derive the relationship between density of substance, its molar mass, and the unit cell edge length. Explain how you will calculate the number of particles, and a number of unit cells in x g of metal.