NEET Chemistry Chapter Wise Mock Test – Solid State

NEET Chemistry Chapter Wise Mock Test – Solid State

Question 1:
The first order diffraction of X-rays from a certain set of crystal planes occur at an angle of 11.8° from the planes. If the planes are 0.281 nm apart, what is the wavelengths of X-rays?
(a) – 0.2180 nm
(b) – 0.2044 nm
(c)-0.1180nm
(d)-0.3897 nm

Question 2:
How many space lattices are obtainable from the different crystal systems?
(a) 7
(b) 14
(c)32
(d) 230

Question 3:
The number of hexagonal faces°ftat are present in a truncated octahedron is
(a) 2
(b) 4
(c) 6
(d) 8

Question 4:

Question 5:

Question 6:
The ability of a given substance to assume two or more crystalline structure is called
(a) amorphism
(b) isomorphism
(c) polymorphism
(d) isomerism

Question 7:
In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is
(a) A₂B
(b) AB₂
(C)A₂B₂
(d) A₂B₅

Question 8:

Question 9:

Question 10:
A compound alloy of gold and copper crystallises in a cubic lattice in which the gold atoms occupy the lattice points at the corners of a cube and the copper atoms occupy the centres of each of the cube faces. Hence, compound alloy has formula
(a) AuCu
(b) AU₃CU
(c) Au₂Cu
(d) AuCU₃

Question 11:
In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be
(a) X₄X₃
(b) X2Y₃
(C) X₂Y
(d)X₃Y₄

Question 12:
If Z is the number of atoms in the unit cell that represents the closest packing sequence ABC ABC, the number of tetrahedral voids in the unit cell is equal to
(a) Z
(b) 2Z
(c) Z/2
(d) Z/4

Question 13:

Question 14:

Question 15:
Which of the following statement is not true about hexagonal close packing?
(a) The coordination number is 12
(b) It has 74% packing efficiency
(c) Tetrahedral voids of the second layer are covered by the spheres of the third layer
(d) In this arrangement spheres of the fourth layer are exactly aligned with those of the first layer

Question 16:
Iron oxide crystallises in a hexagonal close-packedarray of oxide ions with two out of every three octahedral holes occupied by iron ions. What would be the formula of the iron oxide?
(a) FeO
(b) Fe₂0₃
(c) Fe₃0₄
(d) All are possible

Question 17:

Question 18:
The correct order of the packing efficiency in different types of unit cell is
(a) fee < bee < simple cubic
(b) fee > bee > simple cubic
(c) fee < bcc > simple cubic
(d) bcc < fee > simple cubic

Question 19:

Question 20:
Gold (atomic radius = 0.144 nm) crystallises in a face centred unit cell. What is the length of side of the cell?
(a) 0.414
(b) 0.407
(c) 1.414
(d) 1.407

Question 21:
What is the coordination number in a square close-packed structure in two dimensions?
(a) 2
(b) 3
(c) 4
(d) 6

Question 22:

Question 23:

Question 24:

Question 25:

Question 26:

Question 27:

Question 28:

Question 29:

Question 30:

Question 31:

Question 32:

Question 33:
The structure of TICI is similar to CsCI. What would be the radius ratio in TICI?
(a) 0.155-0.225
(b) 0.225-0.414
(c) 0.414-0.732
(d) 0.732-1.00

Question 34:

Question 35:
Which one of the following has Frenkel defect?
(a) NaCI
(b) AgBr
(c) Graphite
(d) Diamond

Question 36:

Question 37:
An example of a non-stoichibmetric compound is
(a) PbO
(b) Ni0₂
(c) AI₂O₃
(d) Fe₃0₄

Question 38:

Direction (Q. NO. 39) In the following question more than one answers given may be correct. Select the correct answer and mark it according to the codes.
Codes
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct

Question 39:

Question 40:

Direction (Q. NOS. 41-43) Each of these questions contains
two statements : Assertion antf ^Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below
(a) Assertion is true, Reason is true; Reason is the correct explanation for Assertion
(b) Assertion is true, Reason is true; Reason is not the correct explanation for Assertion
(c) Assertion is true, Reason is false
(d) Assertion is false, Reason is true

Question 41:
Assertion Diamond and graphite are polymorphic forms.
Reason Carbon adopts different structural arrangements under different conditions to give these two forms

Question 42:
Assertion Frenkel defects are found in silver halides.
Reason Frenkel defects are commonly found in ionic solids.

Question 43:

Question 44:
A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?
(a) 40 pm
(b) 127 pm
(c) 80pm
(d) 108 pm

Question 45:

Question 46:

Question 47:
The number of carbon atoms per unit cell of diamond
is
(a) 8
(b) 2
(c)1
(d) 4

Question 48:
The number of octahedral void (s) per atom present in a cubic close-packed structure is
(a) 1
(b) 3
(c) 2
(d) 4

Question 49:
A metal crystallises with a face centred cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is
(a) 288 pm
(b) 408 pm
(c) 144 pm
(d) 204 pm

Question 50:
An alloy of copper, silver and gold is found to have copper constituting the ccp lattice. If silver atoms occupy the edge centres and gold is present at body centre, the alloy has a formula
(a) CuAgAu
(b) Cu₄Ag₂Au
(c)CuAg₃Au
(d)Cu₄Ag₄Au

Question 51:
In a face centred cubic lattice, a unit cell is shared equally by how many unit cells?
(a) 8
(b) 4
(c) 2
(d) 6

Question 52:
AB crystallises in a body centred cubic lattice with edge length a equal to 387 pm. The distance between two oppositely charged ions in the lattice is
(a) 335 pm
(b) 250 pm
(c) 200 pm
(d) 300 pm

Answers:

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