Identify the suitable reagent for the following conversion.
The correct order of decreasing acidity of the following aliphatic acids is
Select the incorrect reaction among the following :
Identify the correct reagents that would bring about the following transformation.
(i) $\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}$
(ii) $\mathrm{CrO}_3$
(i) $\mathrm{BH}_3$
(ii) $\mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{O}} \mathrm{H}$
(iii) PCC
(i) $\mathrm{BH}_3$
(ii) $\mathrm{H}_2 \mathrm{O}_2 / \stackrel{\ominus}{\mathrm{O}} \mathrm{H}$
(iii) alk. $\mathrm{KMnO}_4$
(i) $\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}$
(ii) PCC
Match List I with List II.
| List I (Reaction) |
List II (Reagents/Condition) |
||
|---|---|---|---|
| A. |  |
I. |  |
| B. |  |
II. | CrO$_3$ |
| C. |  |
III. | KMnO$_4$/KOH, $\Delta$ |
| D. |  |
IV. | (i) O$_3$ (ii) Zn-H$_2$O |
Choose the correct answer from the options given below:
For the given reaction:
'P' is
Consider the given reaction:
$\mathrm{CH}_3 \mathrm{COCH}_3 \stackrel{\text { dil } \mathrm{Ba}(\mathrm{OH})_2}{\longrightarrow} \text { ''X" }$
The functional groups present in compound "$\mathrm{X}$" are:
Identify 'X' in above reactions
The following conversion is known as:
Reagents which can be used to convert alcohols to carboxylic acids, are
(A) $\mathrm{CrO}_3-\mathrm{H}_2 \mathrm{SO}_4$
(B) $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{SO}_4$
(C) $\mathrm{KMnO}_4+\mathrm{KOH} / \mathrm{H}_3 \mathrm{O}^{+}$
(D) $\mathrm{Cu}, 573 \mathrm{~K}$
(E) $\mathrm{CrO}_3,\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}$
Choose the most appropriate answer from the options given below :
The major product formed in the following conversion is ___________.
Complete the following reaction:
[C] is _______.
Identify the major product obtained in the following reaction:
Identify the final product [D] obtained in the following sequence of reactions.
Which of the following reactions is not an example for nucleophilic addition-elimination reaction?
The product formed from the following reaction sequence is
Match List-I with List-II :
| List-I (Reaction) |
List-II (Product formed) |
||
|---|---|---|---|
| (a) | Gabriel synthesis | (i) | Benzaldehyde |
| (b) | Kolbe synthesis | (ii) | Ethers |
| (c) | Williamson synthesis | (iii) | Primary amines |
| (d) | Etard reaction | (iv) | Salicylic acid |
Choose the correct answer from the options given below :
The incorrect method to synthesize benzaldehyde is
Given below are two statements :
Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions.
Statement II : The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the above statements, choose the most appropriate answer from the given below
RMgX + CO2 $\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{ether}^{dry}} $ Y $\buildrel {{H_3}{O^ + }} \over \longrightarrow $ RCOOH
What is Y in the above reaction?
Match List-I with List-II.
| List - I (Products formed) |
List - II (Reaction of carbonyl compound with) |
||
|---|---|---|---|
| (a) | Cyanohydrin | (i) | NH$_2$OH |
| (b) | Acetal | (ii) | RNH$_2$ |
| (c) | Schiff's base | (iii) | Alcohol |
| (d) | Oxime | (iv) | HCN |
Choose the correct answer from the options given below
Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is
Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?
Consider the above reaction and identify the missing reagent/chemical.
Choose the correct answer from the options given below.
Identify A, X, Y and Z.
Y-Ethanoic acid, Z-Semicarbazide.
Y-But-2-enal, Z-Semicarbazone.
Y-Butanone, Z-Hydrazone.
Y-Acetate ion, Z-Hydrazine.
is
with methyl lithium gives which of the following species ?
RCHO + NH2NH2 $ \to $ RCH $=$ N $-$ NH2
What sort of reaction is it?
The product A is
