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Q. No.Given below are two statements:
Statement I:
\(HCOOH\) is more acidic than \(C_6H_5COOH\)
Statement II:
\(CH_3COOH\) is less acidic than \(C_6H_5COOH\)
1.
Statement I is correct and Statement II is incorrect
2.
Statement I is incorrect and Statement II is incorrect
3.
Statement I is correct and Statement II is correct
4.
Statement I is incorrect and Statement II is correct
Subtopic: Acidic & Basic Character |
Level 3: 35%-60%
Hints
Which of the following statements are correct?
| (i) | Delocalization of \(\sigma\)-electrons is called hyperconjugation. |
| (ii) | Delocalization of \(\pi\)-electrons is known as resonance. |
| (iii) | Permanent partial displacement of \(\sigma\)-electrons is referred to as inductive effect. |
| 1. | (i) & (iii) | 2. | (ii) & (iii) |
| 3. | (i) & (ii) | 4. | (i), (ii) and (iii) |
Subtopic: Electron Displacement Effects |
66%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | To detect presence of halogens in an organic compound, some dilute nitric acid is added. |
| Reason (R): | Dilute HNO3 destroys Na2S and NaCN by oxidation. |
| 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: Qualitative Analysis of Organic Compounds |
Level 4: Below 35%
Hints
| Assertion (A): | Both C6H14 and C5H12 can exhibit chain isomerism. |
| Reason(R): |
Both C6H14 and C5H12 form three chain isomers each. |
| 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: Structural Isomers |
Level 3: 35%-60%
Hints
| Statement I: | A mixture of chloroform and aniline can be separated by simple distillation. |
| Statement II: | When separating aniline from a mixture of aniline and water by steam distillation aniline boils below its boiling point. |
The correct option is:
| 1. | Statement I is false but Statement II is true. |
| 2. | Both Statement I and Statement II are false. |
| 3. | Statement I is true but Statement II is false. |
| 4. | Both Statement I and Statement II are true. |
Subtopic: Purification of Organic Compounds |
68%
Level 2: 60%+
JEE
Hints
Match the following:
| Test/Method | Reagent | ||
| (i) | Lucas Test | (a) | |
| (ii) | Dumas method | (b) | |
| (iii) | Kjeldahl's method | (c) | |
| (iv) | Hinsberg Test | (d) | |
| (e) |
1. (i)-(d). (ii)-(c), (iii)-(e), (iv)-(a)
2. (i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)
3. (i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)
4. (i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)
Subtopic: Quantitative Analysis of Organic Compounds |
82%
Level 1: 80%+
JEE
Hints
Match Column-I with Column-II.
| Column-I (Molecules) |
COLUMN-II (Nature of molecule) |
| a. (CH3)3N: | i. Electrophile |
| b. \(H_3C-\overset{+}{C}=O\) | ii. Nucleophile |
| c. \(\overset{+}{N}O_2\) | |
| d. H2N:- |
| a | b | c | d | |
| 1. | ii | ii | ii | i |
| 2. | ii | ii | ii | ii |
| 3. | ii | i | i | ii |
| 4. | ii | i | ii | ii |
Subtopic: Nucleophile & Electrophile |
86%
Level 1: 80%+
Hints
Match the items in column I with the items in column II:
| Column I (IUPAC Name) |
Column II (Structure of compound) |
||
| a. | o-Ethylanisole | i. |  |
| b. | p-Nitroaniline | ii. |  |
| c. | 2,3 - Dibromo -1 - phenyl pentane | iii. |  |
| d. | 4-Ethyl-1-fluoro-2-nitrobenzene | iv. |  |
1. a = ii; b = iv; c = i; d = iii
2. a = ii; b = i; c = iv; d = iii
3. a = iv; b = i; c = ii; d = iii
4. a = ii; b = iii; c = iv; d = i
Subtopic: Nomenclature |
93%
Level 1: 80%+
Hints
Match the structures given in column I with the corresponding IUPAC names given in column II and choose the correct option.
| Column I | Column II |
A.  |
i. Pent-4-en-2-ol |
B.  |
ii. Cyclohex-2-en-1-ol |
C.  |
iii. 6-Hydroxy-heptanal |
D.  |
iv. 2-Chlorohexane |
E.  |
v. 3- Nitrocyclohexene |
1. A = iii; B = iv; C = v; D = ii; E = i
2. A = iii; B = iv; C = ii; D = v; E = i
3. A = iv; B = i; C = v; D = iii; E = ii
4. A = iv; B = i; C = ii; D = v; E = iii
Subtopic: Nomenclature |
93%
Level 1: 80%+
Hints
Match the item in column I with the column II
| Column I | Column II | ||
| a. |  |
i. |  |
| b. |  |
ii. |  |
| c. |  |
iii. |  |
| d. |  |
iv. |  |
Choose the correct answer from the options given below:
1. a-ii; b-iv; c-i; d-iii
2. a-iii; b-iv; c-ii; d-i
3. a-iv; b-iii; c-i; d-ii
4. a-i; b-iv; c-ii; d-iii
Subtopic: Nomenclature |
94%
Level 1: 80%+
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