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Q. No.Identify the correct reagents that would bring about the following transformation.
1. \(\text { (i) } \mathrm{BH}_3\)
\((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\)
\(\text { (iii) } \mathrm{P C C}\)
2. \(\text { (i) } \mathrm{BH}_3\)
\((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\)
\(\text { (iii) alk. } \mathrm{KMnO}_4\)
\(\text { (iv) } \mathrm{H}_3 \mathrm{O}^{+}\)
3. \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\)
\(\text { (ii) } \mathrm{P C C}\)
4. \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\)
\(\text { (ii) } \mathrm{CrO}_3\)
1. \(\text { (i) } \mathrm{BH}_3\)
\((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\)
\(\text { (iii) } \mathrm{P C C}\)
2. \(\text { (i) } \mathrm{BH}_3\)
\((ii) \mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{OH}}\)
\(\text { (iii) alk. } \mathrm{KMnO}_4\)
\(\text { (iv) } \mathrm{H}_3 \mathrm{O}^{+}\)
3. \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\)
\(\text { (ii) } \mathrm{P C C}\)
4. \(\text { (i) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\)
\(\text { (ii) } \mathrm{CrO}_3\)
Subtopic: Alcohols: Preparation & Properties |
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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 |
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The major product D formed in the following reaction sequence is:
| 1. |  |
2. |  |
| 3. | \(\mathrm{CH_3CH_2OH}\) | 4. | \(\mathrm{CH_3CH_2Cl}\) |
Subtopic: Alcohols: Preparation & Properties |
64%
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Identify D in the following sequence of reactions:
1. n-Propyl alcohol
2. Isopropyl alcohol
3. Propanal
4. Propionic acid
1. n-Propyl alcohol
2. Isopropyl alcohol
3. Propanal
4. Propionic acid
Subtopic: Alcohols: Preparation & Properties |
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Subtopic: Alcohols: Preparation & Properties |
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Subtopic: Mechanism of Dehydration, Methanol & Ethanol |
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Subtopic: Ethers: Preparation & Properties, Uses |
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Reagents that can be used to convert alcohols to carboxylic acids are:
(A) CrO3 - H2SO4
(B) K2Cr2O7 + H2SO4
(C) KMnO4 + KOH/H3O+
(D) Cu, 573 K
(E) CrO3+ (CH3CO)2O
Choose the most appropriate answer from the options given below:
1. (B), (C) and (D) only
2. (B), (D) and (E) only
3. (A), (B) and (C) only
4. (A), (B) and (E) only
(A) CrO3 - H2SO4
(B) K2Cr2O7 + H2SO4
(C) KMnO4 + KOH/H3O+
(D) Cu, 573 K
(E) CrO3+ (CH3CO)2O
Choose the most appropriate answer from the options given below:
1. (B), (C) and (D) only
2. (B), (D) and (E) only
3. (A), (B) and (C) only
4. (A), (B) and (E) only
Subtopic: Alcohols: Preparation & Properties |
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Consider the following reactions:
\(R-COOH\xrightarrow[(ii)~H_2O/HCl]{(i)~X}R-CH_2OH\)
\(\small{R-CH=CH_2\xrightarrow[(ii)~H_2O, NaOH, H_2O_2]{(i)~X}R-CH_2-CH_2-OH}\)
Identify 'X' in above reactions:
\(R-COOH\xrightarrow[(ii)~H_2O/HCl]{(i)~X}R-CH_2OH\)
\(\small{R-CH=CH_2\xrightarrow[(ii)~H_2O, NaOH, H_2O_2]{(i)~X}R-CH_2-CH_2-OH}\)
Identify 'X' in above reactions:
| 1. | \(B_2H_6 \) | 2. | \(LiAlH_4 \) |
| 3. | \(NaBH_4 \) | 4. | \(H_2/Pd \) |
Subtopic: Alcohols: Preparation & Properties |
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Subtopic: Alcohols: Preparation & Properties | Mechanism of Dehydration, Methanol & Ethanol |
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