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Q. No.Identify the suitable reagent for the following conversion
1. (i) \(NaBH_4\), (ii) \(H^+/H_2O\)
2. \(H_2/ Pd-BaSO_4\)
3. (i) \(LiAlH_4\), (ii) \(H^+/H_2O\)
4. (i)\(AlH(iBu)_2\)(ii) \(H_2O\)
1. (i) \(NaBH_4\), (ii) \(H^+/H_2O\)
2. \(H_2/ Pd-BaSO_4\)
3. (i) \(LiAlH_4\), (ii) \(H^+/H_2O\)
4. (i)\(AlH(iBu)_2\)(ii) \(H_2O\)
Subtopic: Aldehydes & Ketones: Preparation & Properties |
Level 3: 35%-60%
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The correct order of decreasing acidity of the following aliphatic acids is:
| 1. | \(\small {\mathrm{HCOOH}>\mathrm{CH}_3 \mathrm{COOH}> \left(\mathrm{CH}_3\right)_2 \mathrm{CHCOOH} }\) \(\small {> \left(\mathrm{CH}_3\right)_3 \mathrm{CCOOH}} \) |
| 2. | \(\small {\mathrm{HCOOH}>\left(\mathrm{CH}_3\right)_3 \mathrm{CCOOH}> \left(\mathrm{CH}_3\right)_2 \mathrm{CHCOOH}}\) \( \small{ > \mathrm{CH}_3 \mathrm{COOH}} \) |
| 3. | \(\small { \left(\mathrm{CH}_3\right)_3 \mathrm{CCOOH}>\left(\mathrm{CH}_3\right)_2 \mathrm{CHCOOH}> \mathrm{CH}_3 \mathrm{COOH}}\) \(\small {>\mathrm{HCOOH}} \) |
| 4. | \(\small {\mathrm{CH}_3 \mathrm{COOH}>\left(\mathrm{CH}_3\right)_2 \mathrm{CHCOOH}> \left(\mathrm{CH}_3\right)_3\mathrm{CCOOH} }\) \(\small {>\mathrm{HCOOH}} \) |
Subtopic: Carboxylic Acids: Preparation & Properties |
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Subtopic: Aldehydes & Ketones: Preparation & Properties |
Level 3: 35%-60%
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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 |
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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 |
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options give below:
| Statement I: | Benzoic acid produces effervescence on treatment with aq. \(\mathrm{NaHCO}_3\) |
| Statement II: | The effervescence is due to the release of hydrogen gas. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Carboxylic Acids: Preparation & Properties |
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Subtopic: Name Reaction |
Level 3: 35%-60%
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Match the reagents in List-I with the corresponding reactions in List-II:
Choose the correct answer from the options given below:
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-I, D-II
3. A-I, B-III, C-IV, D-II
4. A-II, B-I, C-III, D-IV
| List-I (Reagent) |
List-II (Name of the reaction) |
||
| A. | \(\mathrm{{H}_2, {Pd}-{Ba}S {O}_4}\) | I. | Gattermann-Koch reaction |
| B. | \(\mathrm{{(i) \; {CrO}_2 {Cl}_2, {CS}_2\\ (ii) {H}_2 {C}}}\) | II. | Reimer-Tiemann reaction |
| C. | \(\mathrm{{CO, HCl, Anhyd.~\\ {AlCl}_3 / {CuCl}}}\) | III. | Etard reaction |
| D. | \(\mathrm{{CHCl}_3, {NaOH}}\) | IV. | Rosenmund reduction |
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-I, D-II
3. A-I, B-III, C-IV, D-II
4. A-II, B-I, C-III, D-IV
Subtopic: Aldehydes & Ketones: Preparation & Properties |
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Subtopic: Aldehydes & Ketones: Preparation & Properties |
74%
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Select the incorrect reaction among the following:
| 1. | \(\mathrm{CH}_3 \mathrm{COCl} \xrightarrow[\Delta]{\mathrm{H}_2 \mathrm{O}} \mathrm{CH}_3 \mathrm{COOH}\) |
| 2. |  |
| 3. | \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH} \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{\oplus}]{\text { (i) } \mathrm{KMnO}_{4}/\mathrm{OH^{-} }} \mathrm{CH}_3 \mathrm{COOH}\) |
| 4. | \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{OH} \xrightarrow{\mathrm{CrO}_3-\mathrm{H}_2 \mathrm{SO}_4} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}\) |
Subtopic: Acid Derivatives - Preparation, Properties & Uses |
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