मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Distinguish Between Crystalline Solids and Amorsphous Solids.

Advertisements
Advertisements

प्रश्न

Distinguish between crystalline solids and amorsphous solids.

फरक स्पष्ट करा
Advertisements

उत्तर

Points Crystalline solids  Amorphous solids
Arrangement The constituents particles are arranged in regular order. The constituents particles show disordered arrangement.
Order Exhibit both long-range and short-range order. Exhibit only short-range order.
Melting point They have a sharp melting point. They melt over a range of temperatures.
Heat of fusion Show definite heat of fusion. Do not have definite heat of fusion.
Clearage property They undergo a clean clearage. They cut irregularly.
Physical property Show anisotropy in physical property measurements. They are isotropic.
Nature They are true solids. They are pseudo solid or supercooled liquid.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2018-2019 (March) Set 1

संबंधित प्रश्‍न

The major binding force in diamond is_______________ .

(a) Covalent bond                                                  

(b)  Ionic bond

(c) Metallic bond                                                   

(d)  Co-ordinate covalent bond


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


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


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


Account for the following : 

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


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 ______.


Classify the following solid.

Brass


Classify the following solid.

Diamond


Classify the following solid.

Iodine


Select the INCORRECT match:


Which of the following is TRUE about molecular solids?


Which among the following is not true for crystalline solid?


Order of increasing melting points among H2O(s), C(s), CS2 and Sn is ____________.


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


Ionization enthalpy is lowest in ____________.


Silicon carbide is an example of ____________.


London forces are present in ____________.


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


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


Which of the following is not the characteristic of ionic solids?


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 \[\ce{0.04 \overset{\circ}{A}}\]


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


What are intermolecular forces of attraction involved in molecular crystals?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×