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

(a)

Grignard reagent

(b)

Sn / HCl

(c)

hydrazine in presence of slightly acidic solution

(d)

hydrocyanic acid

Which one of the following reduces tollens reagent

(a)

formic acid

(b)

acetic acid

(c)

benzophenone

(d)

none of these

Assertion: p – N, N – dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (-CHO) group is meta directing.
Codes:
A) if both assertion and reason are true and reason is the correct explanation of assertion.
B) if both assertion and reason are true but reason is not the correct explanation of assertion.
C) assertion is true but reason is false
D) both assertion and reason are false

(a)

if both assertion and reason are true and reason is the correct explanation of assertion.

(b)

if both assertion and reason are true but reason is not the correct explanation of assertion.

(c)

assertion is true but reason is false

(d)

both assertion and reason are false

Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

(a)

(b)

(c)

(d)

Identify 'X'.

(a)

(b)

(c)

(d)

Methyl ketones are usually characterised by _______.

(a)

the Fehling's solution

(b)

the iodoform test

(c)

the Schiff's test

(d)

the Tollen's reagent

Which of the following does not give iodoform test?

(a)

aceto phenone

(b)

benzophenone

(c)

\({ CH }_{ 3 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ CHOH } \)

(d)

\({ CH }_{ 3 }-\underset { \overset { | }{ OH } }{ CH } -{ { CH }_{ 2 }{ CH }_{ 2 }-CH }_{ 3 }\)

Which one of the following gives oxime with hydroxyl amine?

(a)

Benzene

(b)

Phenol

(c)

Benzaldehyde

(d)

Bezoicacid

Chloroacetic acid is stronger than acetic acid due to _______.

(a)

+ I effect

(b)

- I effect

(c)

+ M effect

(d)

- M effect

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

(a)

Vinegar

(b)

Glacial acetic acid

(c)

Formalin

(d)

Both (a) and (b)

Aldehydes and ketones are reduced to hydrocarbons by zinc amalgam and cone.HCI. This is__________ reaction.

(a)

Clemmenson's reduction

(b)

Wolff krishner reduction

(c)

Rosenmmunds reduction

(d)

catalytic reduction

The aldehyde derived from vitamin B6 is __________.

(a)

pyridoxal

(b)

pyridoxine

(c)

CH₃CHO

(d)

glyoxal

The product is __________.

(a)

CO+H₂O

(b)

HCOOH

(c)

H₂+CO₂

(d)

HCHO+O₂

The order of reactivity of carboxylic acid derivatives is _______.

(a)

Acid chloride > Ester > Amide > Acid anhydride

(b)

Acid chloride > Acid anhydride > Ester > Amide

(c)

Acid chloride > Amide > Acid anhydride > Ester

(d)

Acid anhydride > Ester > Amide > Acid chloride

Assertion: Formic acid reduces Tollens reagent.
Reason: Formic acid contains an aldehyde as well as acid group.
Codes:
a) (A) and (R) are true and (R) is the correct explanation of (A)
b) Both (A) and (R) are true but (R) does not explain (A)
c) (A) is true but (R) is false
d) Both (A) and (R) are false

Assertion: Ethyl benzene and methyl benzene both are oxidised to benzoic acid with acidified KMnO₄.
Reason: The entire side chain of aromatic carboxylic acid is oxidised to COOH irrespective of the length of the side chain.
Codes:
a) (A) and (R) are true and (R) is the correct explanation of (A)
b) Both (A) and (R) are true but (R) does not explain (A)
c) (A) is true but (R) is false
d) Both (A) and (R) are false

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 AlCl₃ to give compound(D). Compound (D) on reduction with Zn/Hg and Conc.HCl gives (E).  Identify (A), (B), (C) (D) and (E). Write the equations.

What type of aldehydes undergo Cannizaro reaction?

Write any three uses of acetaldehyde.

How will you convert benzaldehyde into the following compounds?
(i) benzophenone
(ii) benzoic acid
(iii) α-hydroxyphenylaceticacid.

An organic compound, C₂H₄O gives a red precipitate when warmed with Fehling's solution. It also undergoes aldol condensation in presence of alkali.
(i) Write IUPAC name of the compound.
(ii) Predict the hybridization of carbon atoms in the compound?
(iii) Write equation for the reaction

Complete the following reaction
\({ CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 2 }-\underset { \overset { || }{ O } }{ C } -{ CH }_{ 3 }\overset { HO-{ CH }_{ 2 }-{ CH }_{ 2 }-OH }{ \underset { { dry }{ HCl} }{ \longrightarrow } } ?\)

Explain why carboxylic acids behave as acids. Discuss briefly the effects of electron withdrawing and donating substituents on acid strength of carboxylic acids.