Download books and chapters from book store.
Currently only available for.
CBSE

Chemistry

NEET Chemistry : The Solid State

51.

The Ca²⁺ and F^- are located in CaF₂ crystal respectively at face-centred cubic lattice points and in

52.

Assertion : The presence of a large number of Schottky defects in NaCl lowers its density.

Reason : In NaCl, there are approximately 10⁶ Schottky pairs per cm³ at room temperature.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false.
If both assertion and reason are false.

53.

Assertion: Monoclinic sulphur is an example of monoclinic crystal system.

Reason: For a monoclinic system, a $≠$ b $≠$ c and a $=$ $γ$ = 90°, $β$ $≠$ 90°.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

54.

The crystal system of a compound with unit cell dimensions , a = 0.387 , b = 0.387 and c = 0.504 run and $α$ = $β$ = 90° and $γ$ = 120° is :

55.

Which of the following is an amorphous solid?

56.

Tincture of iodine is :

57.

Which defect causes decrease in the density of crystal ?

58.

CsCl has bcc arrangement. Its unit cell edge length is 400 pm. Its inter-ionic distance is

59.

In a solid, a tom M occupies ccp lattice and 1/3^rd of tetrahedral voids are occupied by atom N. Find the formula of solid formed by M and N.

60.

In bcc structure contribution of comer and central atom is

Do a good deed today
Refer a friend to Zigya