TN State Board Samacheer Kalvi Online Test for 11th Std - Chemistry - English - Solid State

Question 1 Of 10

The number of unit cells in 8gm of an element X (atomic mass 40) which crystallizes in bcc pattern is (NA is the Avogadro number)

6.023 × 1023 6.023 × 1022 60.23 × 1023 (left( frac { 6.023 imes { 10 }^{ 23 } }{ 8 imes 40 } ight))

Question 2 Of 10

An ionic compound Ax By crystallizes in fee type crystal structure with B ions at the centre of each face and A ion occupying centre of the cube, the correct formula of A B is ………..

AB AB3 A3B A8B6

Question 3 Of 10

If ’a’ stands for the edge length of the cubic system; sc ,bcc, and fcc. Then the ratio of radii of spheres in these systems wilL be respectively.

Question 4 Of 10

Potassium has a bcc structure with nearest neighbor distance 4.52 A. its atomic weight is 39. Its density will be ………..

915 kg m-3 2142 kg m-3 452 kg m-3 390 kg m-3

Question 5 Of 10

Schottky defect in a crystal is observed when ………..

unequal number of anions and anions are missing from the lattice equal number of anions and anions are missing from the lattice no ion is missing from its lattice. equal number of anions and anions are missing from the lattice

Question 6 Of 10

The vacant space in bcc lattice unit cell is ………..

48% 23% 32% 26%

Question 7 Of 10

Assertion – due to Frenkel defect, density of the crystalline solid decreases.

Both assertion and reason are true and reason is the correct explanation of assertion. Both assertion and reason are true but reason is not the correct explanation of assertion. Assertion is true but reason is false. Both assertion and reason are false

Question 8 Of 10

The yellow colour in NaCl crystal is due to ………..

excitation of electrons in F centers reflection of light from Cl- ion on the surface refraction of light from Na+ ion all of the above

Question 9 Of 10

Solid CO2 is an example of ………..

Covalent solid metallic solid molecular solid ionic solid

Question 10 Of 10

CsCl has bcc arrangement, its unit cell edge length is 400pm, its inter atomic distance is ………..

400pm 800pm (gsqrt { 3 } ) × 100pm (left( frac { sqrt { 3 } }{ 2 } ight)) × 400 pm

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Chemistry - English Medium - Solid State

Samacheer Kalvi 11th Chemistry - Solid State - Book Back Questions in English Medium