The acid that cannot be prepared by Grignard reagent

1. acetic acid

2. formic acid

3. butyric acid

4. benzoic acid

Acetic acid undergoes dehydration on heating with P₂O₅ to form

1. CH₃COOCH₃

2. CH₃OH

3. (CH₃CO)₂O

4. none ofthe a.bove

Aldol is _________

1. 2-hydroxy butanol

2. 3-hydroxy butanol

3. 3- hydroxy butanal

4. 2-hydroxy butanal

Aldehydes may be distinguished from ketones by the use of

1. conc. H₂SO₄

2. Fehling's solution

3. pyrogallol

4. Lucas reagent

Carboxylic acids are more acidic than phenol and alcohol because of

1. intermolecular hydrogen bonding

2. formation of dimers

3. highly acidic hydrogen

4. greater resonance stabilisation of their conjugate base

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

1. more extensive association of carboxylic acid via van der Waals force of attraction

2. formation of carboxylate ion

3. formation of intramolecular H-bonding

4. formation of intermolecular H - bonding

Toluene is oxidised by acidified KMnO₄ to

1. salicylic acid

2. benzyl alcohol

3. benzaldehyde

4. benzoic acid

On dry distillation this gives acetophenone.

1. calcium benzoate

2. calcium acetate and calcium benzoate

3. calcium acetate

4. calcium acetate and calcium formate

On fusion with KOH benzophenone undergoes __________, and gives potassium benzoate and ________.

1. disproportionation reaction, toluene

2. condensation reaction, toluehe

3. disproportionation reaction, benzene

4. condensation reaction, benzene

Which among the following statement is incorrect regarding urotropine?

1. It is an urinary antiseptic

2. It is hexa methylene diamine

3. Used in the preparation of an explosive

4. All the above

Ozonolysis of terminal alkenes gives _______ as one of the products .

1. acetone

2. acetaldehyde

3. water

4. formaldehyde

\(CH_{ 2 }={ CH }_{ 2 }\xrightarrow [ (ii){ Zn/H }_{ 2 }O ]{ (i)O_{ 3 } } X\xrightarrow { { NH }_{ 3 } } Y\) 'Y' is

1. Formaldelyde

2. diacetoneammonia

3. hexamethylenetetraamine

4. oxime

The formation of cyanohydrin from a ketone is an example of

1. electrophilic addition

2. nucleophilic addition

3. nucleophilic substitution

4. electrophilic substitution

The IUPAC name of

\(\quad \quad \quad \quad \quad \quad CH_{ 3 }\\ \overset { | }{ CH_{ 3 }{ -CH }_{ 2 }-CH-COOH } \ is\) 

1. a-methyl buturic acid

2. 3-methyl butanoic acid

3. 2-methyl butanoic acid

4. Iso pentanoic acid

Acetaldehyde cyanohydrin on hydrolysis gives

1. acetic acid

2. lactic acid

3. cinnamic acid

4. mandelic acid

The number of carbon atoms in a chain can be increased with _______ reaction.

1. Grignard

2. Cannizaro reaction

3. HVZ

4. Clemmensen

The compound which undergoes intramolecular dehydration with P₂O₅ is __________

1. acetic acid

2. formic acid

3. propionic acid

4. butyric acid

In Rosenmund's reduction, BaSO₄ is used

1. to increase the activity of Pd catalyst

2. to increase the activity of Fe catalyst

3. to lower the activity of Pt catalyst

4. to lower the activity of Pd catalyst

Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water The reagent is

1. Grignard reagent

2. Sn/HCl

3. hydrazine in presence of slightly acidic solution

4. hydrocyanic acid

It is a powerful acetylating agent for compounds containing -OH group and - NHgroup.

1. CH₃CONH₂

2. CH₃COOH

3. CH₃COCl

4. CH₃COOCH₃

6 - 8% solution of acetic acid in water is called ______ .

1. Vinegar

2. Glacial acetic acid

3. Formalin

4. Both (a) and (b)

Which of the following is least acidic

1. C₂H₅OH

2. CH₃COOH

3. C₆H₅OH

4. C1CH₂COOH

Give the stucture of 3-phenyl-2-propanal

1. CH₂=CH-CHO

2. CH₃CHOH-CH₂CHO

3. C₆H₅CH=CH-CHO

4. CH₃-CH=CH-CHO

The common and IUPAC name of HOOC-(CH₂)₄ - COOH is _____.

1. Glutaric acid, hexanedioc acid

2. Glutaric acid, pentanedioc acid

3. Adipic acid, hexanedioic acid

4. Adipic acid, pentanedioc acid

Benzoin condensation is carried out in the presence of

1. alc. KCN

2. alc.KOH

3. acidified KCN

4. both (a) and (c)

The compound used in the preparation of triphenylmethane dye is _________

1. methanol

2. phenyl methanal

3. phenyl methanol

4. ethanal

Phenyl methanalis reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are

1. sodiumbenzoate and phenol

2. Sodium benzoate and phenyl methanol

3. phenyl methanol and sodium benzoate

4. none of these

Which of the following represents the correct order of acidity in the given compounds?

1. FCH₂COOH > CH₃COOH > BrCH₂COOH > ClCH₂COOH

2. FCH₂COOH > ClCH₂COOH > BrCH₂COOH > CH₃COOH

3. CH3COOH > ClCH₂COOH > FCH₂COOH > Br-CH₂COOH

4. Cl CH₂COOH > CH3COOH > BrCH₂COOH > ICH₂COOH

The compound that answers iodoform test is ________

1. CH₃CHO

2. CH₃COCH₃

3. CH₃CH₂OH

4. all of these

Predict the product Z in the following series of reactions
\(Ethanoic\quad acid\xrightarrow { { PCl }_{ 3 } } X\xrightarrow [ { AnhydrousAlCl }_{ 3 } ]{ { C }_{ 6 }{ H }_{ 6 } } Y\xrightarrow [ { (ii)H }_{ 3 }{ O }^{ + } ]{ { (i)CH }_{ 3 }MgBr } Z.\)

1. (CH₃)₂C(OH)C₆H₅

2. CH₃CH(OH)C₆H₅

3. CH₃CH(OH)CH₂ - CH₃

4. 

\(Ethanoic\ acid\xrightarrow { { P/Br }_{ 2 } } \) bromoethanoic acid. This reaction is called

1. Finkelstein reaction

2. Haloform reaction

3. Hell- Volhard- Zelinsky reaction

4. none of these

CH₃CH₂-CO-CH₂CH₃, The IUPAC name of the compound is __________

1. 2-butanone

2. 3-pentanone

3. 2-pentanone

4. propanone

Benzoic acid does not undergo Friedel crafts reaction due ______.

1. resonance in benzene

2. strong deactivating nature of the carboxyl group

3. due to its higher pk_a value

4. all the above

Eletrolysis of aqueous solution of sodium salt of acids giving hydrocarbon is ______ reaction.

1. Knoevenagal

2. HVZ

3. Kolbe's

4. none of the above

An alkene “A” on reaction with O₃ and Zn - H₂O gives propanone and ethanol in equimolar ratio. Addition of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is

1. \(Cl-{ CH }_{ 2 }-{ CH }_{ 2 }-\begin{matrix} { CH }_{ 3 } \\ | \\ \begin{matrix} CH \\ | \\ { CH }_{ 3 } \end{matrix} \end{matrix}\)

2. \(\quad \quad \quad \quad \quad \quad \ { CH }_{ 2 }Cl\\ \quad \quad \quad \quad \quad \quad \ |\\ { H }_{ 3 }C-{ CH }_{ 2 }-CH-{ CH }_{ 3 }\)

3. \({ H }_{ 3 }C-{ CH }_{ 2 }-\begin{matrix} { CH }_{ 3 } \\ \begin{matrix} | \\ C \\ | \end{matrix} \\ Cl \end{matrix}-{ CH }_{ 3 }\)

4. \({ H }_{ 3 }C-{ CH }-\begin{matrix} { CH }_{ 3 } \\ \begin{matrix} | \\ CH \\ | \end{matrix} \\ Cl \end{matrix}\)

Hydrogenation of benzoyl chloride in the presence of Pd on BaSO₄ gives

1. phenol

2. benzoic acid

3. benzyl alcohol

4. benzaldehyde

Aldehydes are functional isomers of

1. ethers

2. alcohols

3. ketones

4. esters

The decarboxylating agent is _________

1. soda lime

2. lime water

3. quick lime

4. lime of milk

In which case chiral carbon is not generated by reaction with HCN

1. 

2. 

3. 

4. 

Hydrolysis of _______ yields acids.

1. cyanides

2. amides

3. esters

4. all the above

A hydrocarbon A (molecular formula C₈H₁₀) on ozonolysis gives B (C₄H₆O₂) only. Compound C (C3H5Br) on treatment with magnesium in dry ether gives (D) which on treatment with C02 followed by acidification gives( C). Identify A, B ·and C.

Identify X andY.
\({ CH }_{ 3 }{ COCH }_{ 2 }{ COOC }_{ 2 }{ H }_{ 5 }\xrightarrow { { CH }_{ 3 }MgBr } X\xrightarrow { { H }_{ 3 }{ O }^{ + } } Y\)

How will you prepare

i)    Acetic anhydride from acetic acid

ii)   Ethylacetate from methylacetate

iii)   Acetamide from methlycyanide

iv)   Lactic acid from ethanal

v)    Acetophenone from acetylchloride

vi)   Ethane from sodium acetate

vii)  Benzoic acid from toluene

viii) Malachitegreen from benzaldehyde

ix)   Cinnamic acid from benzaldehyde

x)    Acetaldehyde from ethyne

A Compound (A) with molecular formula C₂H₃N on acid hydrolysis gives (B) which reacts with thionylchloride to give compound (C). Benzene reacts with compound (C) in presence of anhydrous A1C1₃ to give compound (D). Compound (D) on reduction with gives (E). Identify (A), (B), (C), (D) and (E). Write the equations.

How are the following conversions effected

(a)  propanal into butanone

(b)  Hex-3-yne into hexan-3-one.

(c)  phenylmethanal into benzoic acid

(d)  phenylmethanal into benzoin

A carbonyl compound A having molecular formula C₅H₁₀O forms crystalline precipitate with sodium bisulpite and gives positive iodoform test. A does not reduce Fehling solution. Identify A.

Oxidation of ketones invovles carbon - carbon bond cleavage. Name the product (s) is / are formed on the oxidising 2, 5 - dimethylhexan - 2 - one using strong oxidising agent.

\(\underset { \quad \quad 2,5-dimethyl\ hexan-2-one\quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad 2-methyl\ propanoicacid\quad \quad \quad \quad \quad \quad \quad \quad 3-methyl\ butanoic\ acid\quad \quad \quad }{ { CH }_{ 3 }-\underset { { |\\ CH }_{ 3 }\\ \\ }{ CH } -CO-{ CH }_{ 2 }-CH-{ CH }_{ 3 }\xrightarrow [ con{ HNO }_{ 3 } ]{ (O) } { CH }_{ 3 }-\underset { { |\\ CH }_{ 3 }\\ \\ }{ CH } -COOH\quad +\quad { CH }_{ 3 }-\underset { { |\\ CH }_{ 3 }\\ \\ }{ CH } -{ CH }_{ 2 }COOH } \)

How is propanoic acid is prepared starting from

(a)  an alcohol

(b)  an alkylhalide

(c)  an alkene

How will you convert benzaldehyde into the following compounds?
(i) benzophenone
(ii) benzoic acid
(iii) a-hydroxy phenyl acetic acid.

What is the action ofHCN on
(i) propanone
(ii) 2,4-dichlorobenzaldehyde
(iii) ethanal