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Crystal Structures is an important topic in the Material Science and Technology section in CUET PG exam. Practising this topic will increase your score overall and make your conceptual grip on CUET PG exam stronger.
This article gives you a full set of CUET PG PYQs for Crystal Structures with explanations for effective preparation. Practice of CUET PG Material Science and Technology PYQs including Crystal Structures questions regularly will improve accuracy, speed, and confidence in the CUET PG 2026 exam.
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CUET PG PYQs for Crystal Structures with Solutions
1.
The angle between [111] and [001] directions in a cubic crystal is:- \(54.74^\circ\)
- \(45^\circ\)
- \(35.26^\circ\)
- \(60^\circ\)
2.
Which of the following relations are correct for the cubic crystal:
A. a = b \( \neq \) c
B. a = b = c
C. \( \alpha = \beta = \gamma = 90^\circ \)
D. \( \alpha \neq \beta = \gamma = 90^\circ \)
Choose the correct answer from the options given below:- A and B only
- B and C only
- B and D only
- A and D only
3.
Copper has FCC structure with a lattice constant 3.61 Å. The radius of the copper atom is:- 1.28 Å
- 1.26 Å
- 1.23 Å
- 1.29 Å
4.
Iron at 20◦C is BCC with atoms of atomic radius 0.124 nm. The lattice constant a for the cube edge of the unit cell is- a = 0.2864 nm
- a = 1.2864 nm
- a = 2.2864 nm
- a = 3.2864 nm
5.
Diamond exhibits which type of structures:- Hexagonal and orthorhombic
- Orthorhombic and tetragonal
- Trigonal and monoclinic
- Cubic and hexagonal
6.
Gold and Platinum both have FCC structures with unit cell dimensions of \(4.08 \, \text{\AA}\) and \(3.91 \, \text{\AA}\), respectively. The metallic radii of atoms are:- \(R_{\text{Au}} = 1.44 \, \text{\AA}, \, R_{\text{Pt}} = 1.38 \, \text{\AA}\)
- \(R_{\text{Au}} = 2.44 \, \text{\AA}, \, R_{\text{Pt}} = 1.38 \, \text{\AA}\)
- \(R_{\text{Au}} = 1.44 \, \text{\AA}, \, R_{\text{Pt}} = 2.38 \, \text{\AA}\)
- \(R_{\text{Au}} = 4.44 \, \text{\AA}, \, R_{\text{Pt}} = 1.38 \, \text{\AA}\)
7.
The coordination number and volume of unit cell of hexagonal closed packed structure are respectively:- 6 and \( \left(\frac{3\sqrt{3}}{4}a^2\right)c^2 \)
- 8 and \( \left(\frac{4\sqrt{3}}{5}a^2\right)c^3 \)
- 10 and \( \left(\frac{4\sqrt{3}}{5}a^2\right)c^2 \)
- 12 and \( \left(\frac{3\sqrt{3}}{2}a^2\right)c \)
8.
Which type of liquid crystal has its structure twisted about the helical axis lying perpendicular to the orientation of molecules?- Nematic liquid crystal
- Smetic liquid crystal
- Lytotropic liquid crystal
- Cholesteric liquid crystal
9.
The correct statements about SC lattice are:
A. The number of atoms per unit cell is 1
B. Its packing factor is 0.52
C. Iron is an example of SC lattice
D. Its Coordination Number is 6
Choose the correct answer from the options given below:- A, B and C only
- B and D only
- A, B, C and D
- A, B and D only
10.
Which of the following statements are correct:
A. In SC structure a = 2r
B. In SC structure a = r/2
C. In BCC structure a = \( 4r/\sqrt{3} \)
D. In FCC structure a = \( 2\sqrt{2} r \)
Where a is a lattice parameter and r is the atomic radius.- A, C and D
- A, B and C
- A, B, C and D
- B, C and D
11.
The number of symmetry elements in a cube are:- 13
- 9
- 1
- 26
12.
Powder diffraction experiments on samples of lead with X-rays of wavelength 1.44 $\text{\AA}$ produce (220) reflection at an angle of $32^\circ$. The lattice parameter of Lead is:- 1.44 $\text{\AA}$
- 2.88 $\text{\AA}$
- 3.94 $\text{\AA}$
- 4.02 $\text{\AA}$
13.
The number of atoms per unit cell in simple cubic, face-centered cubic, and body-centered cubic are:- 1, 4, 2
- 4, 1, 2
- 2, 4, 1
- 4, 8, 2
14.
The attractive force between a pair of \(Li^+\) and \(Cl^-\) ions that touch each other is:- \(F = 3.96 \times 10^{-9} \, \text{N}\)
- \(F = 4.96 \times 10^{-9} \, \text{N}\)
- \(F = 5.96 \times 10^{-9} \, \text{N}\)
- \(F = 6.96 \times 10^{-9} \, \text{N}\)
15.
The number of atoms per unit cell of SCC are:- 1
- 2
- 3
- 4
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