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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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?

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प्रश्न

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?

एका वाक्यात उत्तर
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उत्तर

Ionic solids are hard and brittle. They are nonconductors of electricity in solid-state. However, they are good conductors when melted. Hence, the given solid is an ionic solid.

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पाठ 1: Solid State - Exercises [पृष्ठ २६]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 1 Solid State
Exercises | Q 2.07 | पृष्ठ २६

संबंधित प्रश्‍न

The major binding force in diamond is_______________ .

(a) Covalent bond                                                  

(b)  Ionic bond

(c) Metallic bond                                                   

(d)  Co-ordinate covalent bond


Classify the following solids into different types:

a. Ammonium phosphate

b. Brass

c. S8 molecule

d. Diamond


Classify the following molecular solids into different types: 

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

Account for the following : 

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


Classify the following solid:

Pb


Graphite and diamond are ____________.


An ionic compound AxBy crystallizes in fcc type crystal structure with B ions at the centre of each face and A ion occupying corners of the cube. the correct formula of AxBy is


Assertion: monoclinic sulphur is an example of a monoclinic crystal system

Reason: for a monoclinic system, a ≠ b ≠ c and α = γ = 90°, β ≠ 90°


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 ______.


Classify the following solid.

P4


Classify the following solid.

NaCl


Which of the following is TRUE about molecular solids?


Which among the following is not true for crystalline solid?


Nature of binding forces present in carbon dioxide molecules in solid state are ____________.


What type of interaction hold the molecules together in a polar molecular solid?


Which among the following is an example of non-polar molecule?


MgO has the structure of NaCl. The coordination number of the ions in MgO is ____________.


The compound, found in nature in gas phase but ionic in solid state is ____________.


An example of a covalent crystalline solid is ____________.


Which of the following is a network solid?


Iodine molecules are held in the crystals lattice by ______.


Which of the following cannot be regarded as molecular solid?

(i) SiC (Silicon carbide)

(ii) AlN

(iii) Diamond

(iv) I2


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.


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


Which of the following is not correct?


Quartz is which type of crystal?


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