Select Chapter Topics:
Q. No.
Assertion (A):
Due to metal deficiency defect, ZnO gives the appearance of yellow color
Reason (R):
O2- ion occupies anion vacancy and forms F - center
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Imperfections in Solids & Semiconductors |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Match the items in column I with the items in column II.
1. a-iv; b-iii; c-i, d-ii
2. a-ii; b-i; c-iv, d-iii
3. a-iv; b-ii; c-iv, d-i
4. a-iii; b-iv; c-i, d-ii
| Column I | Column II |
| a. Tin | i. Polar molecular solid |
| b. Urea | ii. Metallic solid |
| c. Zinc sulphide | iii. Covalent or network solid |
| d. Silicon carbide | iv. Ionic solid |
1. a-iv; b-iii; c-i, d-ii
2. a-ii; b-i; c-iv, d-iii
3. a-iv; b-ii; c-iv, d-i
4. a-iii; b-iv; c-i, d-ii
Subtopic: Introduction & Crystal System |
87%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Select the correct option based on statements below:
| Assertion (A): | In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells. |
| Reason (R): | In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality. |
| 1. | (A) is false but (R) is true. |
| 2. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 4. | (A) is true but (R) is false. |
Subtopic: Imperfections in Solids & Semiconductors |
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
| Statement 1: | ZnS shows Frenkel defect. |
| Statement 2: | AgBr shows Frenkel as well as Schottky defect. |
1. Statement 1 is true , statement 2 is false.
2. Statement 1 is false , statement 2 is true.
3. Both statements are true.
4. Both statements are false.
Subtopic: Imperfections in Solids & Semiconductors |
84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Match the items in column I with the items in column II.
| Column I | Column II |
| a. Hexagonal unit cells | i. a ≠ b ≠ c and α=γ=90°β≠90° |
| b. Face-centred unit cells | ii. 2 atoms per unit cells |
| c. Monoclinic unit cells | iii. 4 atoms per unit cell |
| d. End-centred unit cells |
iv. a = b ≠ c and α = β = 90° γ = 120° |
1. a-iv; b-ii; c-i, d-iii
2. a-ii; b-i; c-iv, d-iii
3. a-iv; b-iii; c-i, d-ii
4. a-iii; b-iv; c-i, d-ii
Subtopic: Introduction & Crystal System |
84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Match the items in column I with the items in column II.
1. a-iv; b-iii; c-i, d-ii
2. a-ii; b-i; c-iv, d-iii
3. a-iv; b-ii; c-iv, d-i
4. a-iii; b-iv; c-i, d-ii
| Column I | Column II |
| a. Potassium sulphate | i. Molecular (non-polar) solid |
| b. Benzene | ii. Ionic solid |
| c. Water | iii. Covalent or network solid |
| d. Graphite | iv. Hydrogen bonded molecular solid |
1. a-iv; b-iii; c-i, d-ii
2. a-ii; b-i; c-iv, d-iii
3. a-iv; b-ii; c-iv, d-i
4. a-iii; b-iv; c-i, d-ii
Subtopic: Introduction & Crystal System |
90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
| Statement 1: | Glass considered a super cooled liquid. |
| Statement 2: | Glass has tendency to flow slowly. |
1. Statement 1 is true , statement 2 is false.
2. Statement 1 is false, statement 2 is true.
3. Both statements are false.
4. Both statements are true.
Subtopic: Introduction & Crystal System |
72%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Match the items in column I with the items in column II.
1. a-i; b-ii; c-i; d-ii
2. a-ii; b-ii; c-i; d-i
3. a-ii; b-i; c-i; d-ii
4. a-i; b-i; c-ii; d-ii
| Column I: Solids | Column II: Types |
| a. Polyurethane | i. Crystalline |
| b. Naphthalene | ii. Amorphous |
| c. Benzoic acid | |
| d. Teflon |
1. a-i; b-ii; c-i; d-ii
2. a-ii; b-ii; c-i; d-i
3. a-ii; b-i; c-i; d-ii
4. a-i; b-i; c-ii; d-ii
Subtopic: Introduction & Crystal System |
51%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Solids are rigid. |
| Reason (R): | The constituent particles of solids cannot move from their positions. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Introduction & Crystal System |
83%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Incorrect statements regarding quartz glass are-
(a) This is a crystalline solid
(b) Refractive index is same in all the directions
(c) This has definite heat of fusion
(d) This is also called supercooled liquid
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
Subtopic: Introduction & Crystal System |
72%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Select Chapter Topics:
© 2024 GoodEd Technologies Pvt. Ltd.