Karnataka Board PUCPUC Science 2nd PUC Class 12

Give an Example Each of a Molecular Solid and an Ionic Solid. - Chemistry


Give an example each of a molecular solid and an ionic solid.



Examples of molecular solids are solid ammonia (NH3) and ice (H2O). Examples of ionic solids are NaCl and MgO

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2015-2016 (March) All India Set 2 C


The major binding force in diamond is_______________ .

(a) Covalent bond                                                  

(b)  Ionic bond

(c) Metallic bond                                                   

(d)  Co-ordinate covalent bond

What is the covalency of nitrogen in N2O5?

Solid A is a very hard electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

Ionic solids conduct electricity in molten state but not in solid state. Explain

What type of solids are electrical conductors, malleable and ductile?

Explain The basis of similarities and differences between metallic and ionic crystals.

Explain Ionic solids are hard and brittle.

Copper crystallises into a fcc lattice with edge length 3.61 × 10−8 cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm−3.

An ionic compound crystallises in FCC type structure with ‘A’ ions at the centre of each face and ‘B’ ions occupying corners of the cube. The formula of compound is _______.

Classify the following solids into different types:

a. Ammonium phosphate

b. Brass

c. S8 molecule

d. Diamond

Distinguish between crystalline solids and amorsphous solids.

Classify the following molecular solids into different types: 

  1. HCl
  2. CO2
  3. Solid ice
  4. SO2

Define Anisotropy.

Account for the following : 

o-nitrophenol is more steam volatile than p-nitrophenol.  

Answer the following in one or two sentences.

What are the types of particles in each of the four main classes of crystalline solids?

Answer the following in one or two sentences.

A solid is hard, brittle and electrically nonconductor. Its melt conducts electricity. What type of solid is it?

Answer the following in brief.

Distinguish between ionic solids and molecular solids

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 ______.

Classify the following solids as molecular, ionic, covalent and metallic solids.


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

Solid CO2 is an example of ____________.

In calcium fluoride, having the flurite structure the coordination number of Ca2+ ion and F Ion are ____________.

The ionic radii of A+ and B are 0.98 × 10−10 m and 1.81 × 10−10 m. the coordination number of each ion in AB is

Define unit cell.

Differentiate crystalline solids and amorphous solids.

Classify the following solid.


Classify the following solid.


Classify the following solid.


Classify the following solid.


If NaCl is doped with 10−2 mol percentage of strontium chloride, what is the concentration of cation vacancy?

Select the INCORRECT match:

Which of the following is an example of molecular solid?

Which of the following is TRUE about molecular solids?

____________ is an example of molecular crystal.

Dry ice is an example of ____________.

Fullerene is an example of ____________.

Which among the following is NOT a polar molecular solid?

Lithium crystallizes into body centered cubic structure. What is the radius of lithium if edge length of it's unit cell is 351 pm?

An AB2 type structure is found in ____________.

Among solids, the highest melting point is exhibited by ____________.

Iodine molecules are held in the crystals lattice by ______.

Graphite cannot be classified as ______.

Which of the following is not true about the ionic solids?

An excess of potassium ions makes KCl crystals appear violet or lilac in colour since:

(i) some of the anionic sites are occupied by an unpaired electron.

(ii) some of the anionic sites are occupied by a pair of electrons.

(iii) there are vacancies at some anionic sites.

(iv) F-centres are created which impart colour to the crystals.

A crystal with a ≠ b ≠ c and α = β = γ = 90° is

Who introduced the term covalent bond?

Which of the following exists as covalent crystals in the solid state?

The covalent bond length is the shortest in which one of the following bonds?

Calculate the angle at which first order reflection will occurs in an X-ray spectrometer when x ~ rays of wavelength \[\ce{1.54 \overset{\circ}{A}}\] are diffracted by the atoms of a crystal given that inter planer distance is \[\ce{0.04 \overset{\circ}{A}}\]

The major binding force in diamond, silicon and quartz is ______.

Which of the following molecules is non-polar in nature?

A reddish-pink substance on heating gives off a vapour which condenses on the sides of the test tube and the substance turns blue. If on cooling water is added to the residue it turns to original colour. The substance is ______.

Among the following which is the best description of water in the solid phase?

Graphite is a ______.

Mention the res of the following solid:


Mention the res of the following solid:


What are intermolecular forces of attraction involved in molecular crystals?

Quartz is which type of crystal?


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