Match the complexes from List-I with their corresponding type of isomerism from List-II:
Choose the correct option:
1. A-I, B-III, C-IV, D-II
2. A-I, B-IV, C-III, D-II
3. A-II, B-IV, C-III, D-I
4. A-II, B-III, C-IV, D-I
| List-I (Complex) | List-II (Type of isomerism) |
||
| A. | \(\mathrm{\left[{Co}\left({NH}_3\right)_5\left({NO}_2\right)\right] {Cl}_2}\) | I. | Solvate isomerism |
| B. | \(\mathrm{\left[{Co}\left({NH}_3\right)_5\left({SO}_4\right)\right] {Br}}\) | II. | Linkage isomerism |
| C. | \(\mathrm{\left[{Co}\left({NH}_3\right)_6\right]\left[{Cr}({CN})_6\right]}\) | III. | Ionization isomerism |
| D. | \(\mathrm{\left[{Co}\left({H}_2 {O}\right)_6\right] {Cl}_3}\) | IV. | Coordination isomerism |
1. A-I, B-III, C-IV, D-II
2. A-I, B-IV, C-III, D-II
3. A-II, B-IV, C-III, D-I
4. A-II, B-III, C-IV, D-I
Subtopic: Isomerism in Coordination Compounds |
78%
Level 2: 60%+
NEET - 2024
Hints
In which of the following processes entropy increases?
Choose the correct answer from the options given below:
| A. | A liquid evaporates to vapour. |
| B. | Temperature of a crystalline solid lowered from \(130~\text{K}\) to \(0~\text{K}.\) |
| C. | \(2 \mathrm{NaHCO}_{3(\mathrm{~s})} \rightarrow \mathrm{Na}_2 \mathrm{CO}_{3(\mathrm{~s})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) |
| D. | \(\mathrm{Cl}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{Cl}_{(\mathrm{g})}\) |
| 1. | \(\text { A, B and D }\) | 2. | \(\text { A, C and D }\) |
| 3. | \(\text { C and D }\) | 4. | \(\text { A and C }\) |
Subtopic: Spontaneity & Entropy |
73%
Level 2: 60%+
NEET - 2024
Hints
Identify the correct reagents that would bring about the following transformation.
| 1. | \(\text { (i) } \mathrm{BH}_3\) | 2. | \(\text { (i) } \mathrm{BH}_3\) |
| \((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\) | \((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\) | ||
| \(\text { (iii) } \mathrm{P C C}\) | \(\text { (iii) alk. } \mathrm{KMnO}_4\) | ||
| \(\text { (iv) } \mathrm{H}_3 \mathrm{O}^{+}\) | |||
| 3. | \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\) | 4. | \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\) |
| \(\text { (ii) } \mathrm{P C C}\) | \(\text { (ii) } \mathrm{CrO}_3\) |
Subtopic: Alcohols: Preparation & Properties |
62%
Level 2: 60%+
NEET - 2024
Hints
Match the reactions listed in List-I with the appropriate reagents or conditions listed in List-II:
Choose the correct answer from the options given below:
| List-I (Reaction) |
List-II (Reagents/ Condition) |
||
| A. |  |
I. |  |
| B. |  |
II. | \(\mathrm{CrO}_3\) |
| C. |  |
III. | \(\begin{aligned} & \mathrm{KMnO}_4 \\ & \mathrm{KOH}, \Delta \end{aligned}\) |
| D. |  |
IV. | \(\mathrm{(i) \mathrm{O}_3\\ (ii) \mathrm{Zn}-\mathrm{H}_2 \mathrm{O}}\) |
| 1. | \(\text { A-III, B-I, C-II, D-IV }\) |
| 2. | \(\text { A-IV, B-I, C-II, D-III }\) |
| 3. | \(\text { A-I, B-IV, C-II, D-III }\) |
| 4. | \(\text { A-IV,B-I, C-III, D-II }\) |
Subtopic: Aldehydes & Ketones: Preparation & Properties | Carboxylic Acids: Preparation & Properties |
74%
Level 2: 60%+
NEET - 2024
Hints
In which of the following equilibria,\(\text{K}_\text{p}\) and \(\text{K}_\text{c}\) are NOT equal?
| 1. | \(\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}\) |
| 2. | \(\mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \rightleftharpoons \mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_{2(\mathrm{~g})}\) |
| 3. | \(2 \mathrm{BrCl}_{(\mathrm{g})} \rightleftharpoons \mathrm{Br}_{2(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})}\) |
| 4. | \(\mathrm{PCl}_{5(\mathrm{~g})} \rightleftharpoons \mathrm{PCl}_{3(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})}\) |
Subtopic: Kp, Kc & Factors Affecting them |
80%
Level 1: 80%+
NEET - 2024
Hints
Which one of the following alcohols reacts instantaneously with Lucas reagent?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. | \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{OH}\) |
Subtopic: Alcohols: Preparation & Properties |
81%
Level 1: 80%+
NEET - 2024
Hints
Given below are two statements :
1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.
| Statement I: | The boiling point of three isomeric pentanes follows the order, \(\small\text { n-Pentane }>\text { Isopentane }>\text { Neopentane }\) |
| Statement II: | When branching increases, the molecule attains the shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. |
1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.
Subtopic: Aliphatic Hydrocarbon- Physical Properties |
76%
Level 2: 60%+
NEET - 2024
Hints
Given below are two statements:
| Statement I: | Aniline does not undergo Friedel-Crafts alkylation reaction. |
| Statement II: | Aniline cannot be prepared through Gabriel synthesis. |
| 1. | Both Statement I and Statement II are incorrect. |
| 2. | Statement I is correct and Statement II is incorrect. |
| 3. | Statement I is incorrect and Statement II is correct. |
| 4. | Both Statement I and Statement II are correct. |
Subtopic: Amines - Preparation & Properties | Identification of Primary, Secondary & Tertiary Amines |
68%
Level 2: 60%+
NEET - 2024
Hints
The E° value for the Mn3+/Mn2+ couple is more positive than that of Cr3+/Cr2+ or Fe3+/Fe2+ due to change of:
| 1. | d5 to d2 configuration | 2. | d4 to d5 configuration |
| 3. | d3 to d5 configuration | 4. | d5 to d4 configuration |
Subtopic: d-Block Elements- Properties & Uses |
71%
Level 2: 60%+
NEET - 2024
Hints
Which solution is part of Fehling solution 'A' (used in tests for reducing sugars and aldehydes)?
| 1. | Alkaline copper sulphate |
| 2. | Alkaline solution of sodium potassium tartrate (Rochelle's salt) |
| 3. | Aqueous sodium citrate |
| 4. | Aqueous copper sulphate |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
59%
Level 3: 35%-60%
NEET - 2024
Hints
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