Question 1 :
${ CH }_{ 3 }COOH\xrightarrow [  ]{ Ca{ \left( OH \right)  }_{ 2 } } A\xrightarrow [ \Delta  ]{ Ca{ \left( OOCH \right)  }_{ 2 } }  B\xrightarrow [  ]{ { NH }_{ 2 }OH } C$<br/>Identify $C$ in the given series.
Question 3 :
Lower aldehyde and ketones attributed to the formation of  ______bonding with water molecules.<br/>
Question 4 :
$HCHO\xrightarrow [ ]{ Reduction } A\xrightarrow [ ]{ P\quad and\quad { I }_{ 2 } } B\xrightarrow [ ]{ KCN } C\xrightarrow [ ]{ Hydrolysis } D$<br>What is $D$?
Question 6 :
Which of the following is/are responsible for the higher boiling points of aldehydes and ketones compared to ethers and hydrocarbons of comparable molecular mass?<br>
Question 7 :
The acidity of alpha hydrogen of the carbonyl group is due to:<br/>
Question 10 :
Identify $(X),\ (Y) $ and $(Z)$ reagents in the given sequence of reaction. $CH_3COCH_3\xrightarrow[heat]{I_2+NaOH} X \xrightarrow[heat]{Ag} Y \xrightarrow[heat]{H_2SO_4/HgSO_4} Z$
Question 12 : The compound (C) in the following series of reactions is:<br/>(1)$Acetone+CH_3MgBr\overset{Dry Ether}{\longrightarrow}A\overset{H_3O^{\bigoplus}}{\longrightarrow}B$<div><br/>(2)$ B\overset{363K}{\underset{20\%, H_2SO_4}{\longrightarrow}}C+H_2O$.</div>
Question 13 :
Which of the following reagent cannot be used for differentiation between $CH_{ 3 }CHO$ and $CH_3CO-Ph$?
Question 14 :
$0.40g$ of an organic compound $(A)$, (Molecular formula ${C}_{5}{H}_{8}O$) reacts with x mole of ${CH}_{3}MgBr$ to liberate $224mL$ of a gas at STP. With excess of ${H}_{2}$, $(A)$ gives pentan-1-ol. The correct structure of $(A)$ is:
Question 18 :
The order of susceptibility of nucleophilic attack on aldehydes follows the order
Question 20 :
Which of the following statements is not true for acetaldehyde ?
Question 21 :
Which of the following doesn't use acetaldehyde as a starting material in its preparation?
Question 23 :
In addition reactions of aldehydes, the carbonyl carbon atom changes from:<br/>
Question 27 :
Which of the following is the flavouring agent for food, beverages etc?
Question 28 :
Few simple chemical tests are given below to differentiate between the pair of compounds. Which of the following tests is not correct for differentiation?
Question 29 :
Which among the following is most reactive to give nucleophilic addition?
Question 32 :
An organic compound $B$ is formed by the reaction of ethyl magnesium iodide with a substance $A$, followed by treatment with dilute aqueous acid. Compound $B$ does not react with PCC or PDC in dichloromethane. Which of the following is a possible compound for $A$?
Question 33 :
Diols in which bot hydroxy groups are bonded to the same carbon can spontaneously eliminate a molecule of water to produce a carbonyl compound.<br>Which compound, after complete hydrolysis, gives a reaction with Tollens' reagent?
Question 36 :
Which of the following organic compound has a bitter almond taste?
Question 37 :
Reduction of ketones cannot be carried out with which of the following reagents?<br>
Question 40 :
Upon reaction with $CH_3MgBr$ followed by protonation, the compound that produces ethanol is:
Question 45 :
Compound $X,{CH}_{3}CH(OH)CH(CHO){CH}_{3}$, is heated under reflux with an excess of acidified ${K}_{2}{Cr}_{2}{O}_{7}$ to form compound $Y$<br>Both X and Y are separately warmed with Fehling's solution and the observations noted.<br>What are the observations?
Question 46 :
Which of the following reagent can be used to distinguish propanal and propanone?
Question 47 :
In which of the following solvent/(s), aldehydes and ketones are soluble?<br>
Question 48 : Alcohols, aldehydes and nitriles can each be converted into carboxylic acids. Which descriptions of their conversions into carboxylic acids are correct?<table class="wysiwyg-table"><tbody><tr><td><br></td><td>alcohols</td><td>aldehydes</td><td>nitriles</td></tr><tr><td>A</td><td>hydrolysis</td><td>hydrolysis</td><td>hydrolysis</td></tr><tr><td>B</td><td>hydrolysis</td><td>hydrolysis</td><td>oxidation</td></tr><tr><td>C</td><td>oxidation</td><td>oxidation</td><td>hydrolysis</td></tr><tr><td>D</td><td>oxidation</td><td>oxidation</td><td>oxidation</td></tr></tbody></table>
Question 49 :
Aldehydes and ketones with ______ or more carbon atoms are either sparingly soluble or insoluble in water.<br/>
Question 50 :
To get DDT , chlorobenzene has to react with which of the following compounds in the presence of concentrated sulphuric acid
Question 52 :
What sequence of steps represents the best synthesis of 4-heptanol ${ \left( { CH }_{ 3 }{ CH }_{ 2 }{ CH }_{ 2 } \right)  }_{ 2 }CHOH $?
Question 54 :
Which of the following aldehyde is very much used in perfumery and in dye industries?
Question 56 :
Among the given compounds, the compound which is most susceptible to a nucleophilic attack at the carbonyl group is :<br/>
Question 59 :
Statement- I:$(CH_{3})_3CCOC(CH_{3})_3$ and acetone can be distinguished by the reaction with $NaHSO_{3}$.<br/>Statement- II: $SO_{3}^{-2}$ is the nucleophile in bisulphate addition.<br/>
Question 61 :
Identity reactant (X) in the given reaction sequence .<br/>$ \mathrm{CH_{3}COCH_{3} + X \rightarrow  (CH_{3}) _3C - (OMgCl) \overset{H_{2}O}{\rightarrow} (CH_3)_3C-OH}$<br/>
Question 62 :
Arrange the following compounds in the increasing order of their reactivity towards HCN.<br/>I. Acetaldehyde<br/>II. Acetone<br/>III. Methyl-tert-butyl ketone<br/>IV. Di-tert-butyl ketone
Question 63 :
The addition of $HCN$ to carbonyl compounds is an example of:
Question 68 :
Which of the following is an example of nucleophilic addition reaction?<br/>
Question 70 :
Which of the following reagents reacts differently with$ HCHO, CH_3CHO and CH_3COCH_3?$
Question 71 :
Which among the following compounds will give a secondary alcohol on reacting with Grignard reagent followed by acid hydrolysis?<br/>I. $HCHO$       II. $C_{2}H_{5}CHO$           III. $CH_{3}COCH_{3}$       IV. $RCOOC_{2}H_{5}$  the correct option is:
Question 72 :
A sample of acetaldehyde contained some ethyl alcohol as impurity. The reagent useful for the purification of $CH_{3}CHO$ is<span> :</span>
Question 74 :
Statement- I: The addition of ammonia derivatives on carbonyl compound is carried in weakly acidic medium.<br/>Statement- II : In weakly acidic medium attacking nuclephile is also protonated.<br/><br/>
Question 78 :
The reagent(s) which can be used to distinguish acetophenone from benzophenone is(are):
Question 81 :
Statement- I: Lower aldehydes and ketones are soluble in water. The solubility decreases as the molecular mass increases.<br/>Statement- II: Distinction between aldehydes and ketones can made by Tollens reagent.<br/><br/>
Question 82 :
The most reactive compound towards formation of cyanohydrin on treatment with $KCN$ followed by acidification is:
Question 85 :
Which is the main organic product obtained by the reaction of $2,2,2-$ trichoro ethanal with calcium hydroxide?
Question 86 : An organic compound $'X'$ forms an orange-yellow precipitate with $2, 4-DNP$ reagent. It does not react with aqueous $[Ag(NH_{3})_{2}]NO_{3}.X$ on reduction with $NaBH_{4}$ gives a secondary alcohol and on oxidation with nitric acid yields a dicarboxylic acid containing the same number of carbon atoms. On bromination, $X$ gives a monobromo product. On the basis of these reactions, it can be concluded that $X$:<div>I. contains aldehydic carbonyl group.<br/>II. contains ketonic carbonyl group<br/>III. contains ester carbonyl group<br/>IV. does not contain $C=C$ bonds.</div>
Question 89 :
What is the major product when Isobutyraldehyde reacts with $50$ % KOH?
Question 90 :
<span>Predict which of the following compounds will have a lower boiling point than 1-butanal.</span>
Question 91 :
Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution?
Question 93 :
Arrange the following compounds in the increasing order of their boiling points.<br/>$CH_3CH_2CH_2CHO, CH_3CH_2CH_2CH_2OH, H_5C_2-O-C_2H_5, C_2H_5CH_2C_2H_5$
Question 101 :
A compound, containing only carbon, and hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is:
Question 102 :
Consider a compound 'A' with formula $C_{3}H_{6}O$. It forms phenyl hydrazone and gives negative Tollen's test. Compound 'A' on reduction gives propane. Then, identify compound 'A'.
Question 103 :
Which one of the following reagent can distinguish <span>between an aldehyde and ketone?</span>
Question 104 :
Which reagent can be used to distinguish between $C{ H }_{ 3 }COOH$ and $C{ H }_{ 3 }COC{ H }_{ 3 }$?
Question 105 :               $O$                              $O$<div>              $||$                               $||$</div><div>$CH_3-C-H$ and $CH_3-C-CH_3$ is differentiated by :</div>
