Jee 2014 Booklet7 Hwt Oxygen Containing Organic Compounds II

Vidyamandir Classes DATE :

TIME : 25 Minutes

MARKS : [ ___ /15]

TEST CODE : ALD K [1]

START TIME :

END TIME :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 15 Objective Type Questions. Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

2.

Which of the following gives an aldehyde on dry distillation? (A) Calcium formate + calcium acetate (B) (C) Calcium acetate (D)

Calcium acetate + calcium benzoate Calcium benzoate

Which set of products is expected on reductive ozonolysis of the following diolefin?

CH 3 | CH 3CH  C  CH  CH 2 (A) (C) 3.

CH3CHO ; CH3COCH = CH2 CH3CHO ; CH3COCHO ; CH2O

(B) (D)

CH3CH = C(CH3)CHO ; CH2O CH3CHO ; CH3COCH3 ; CH2O

The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is : (A) Methanal (B) Propanal (C) Propanone (D) Ethanal

4. Identify the reactant : (A) H2O

(B)

(A)

(B)

HCHO

(C)

CO

(D)

CH3CHO

5.

(C)

(D)

6.

When a mixture of calcium benzoate and calcium acetate is dry distilled, the resulting major compound is : (A) acetophenone (B) benzaldehyde (C) benzophenone (D) acetaldehyde

7.

3-pentanol on reaction with aluminum tertiary butoxide in the presence of acetone gives : (A) 3-pentanal (B) 2-petntanal (C) 3-pentanone (D)

8.

2-pentanone

A is :

(A)

(B)

VMC/ Oxygen Containing Organic Compounds - II

(C)

(D)

11

HWT-7/Chemistry

Vidyamandir Classes 9.

10.

Calcium fomate on distillation gives. (A) HCOOH (B)

CH3COOH

(C)

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is : (A) pyridinium chloro-chromate (B) (C) acidic dichromate (D)

CH3CHO

(D)

HCHO

chromatic anhydride in glacial acetic acid acidic permanganate

11.

By combining the two calcium salts of carboxylic acids, we are preparing 2-butanone. Find the correct pair of the following (A) calcium formate + calcium propanoate (B) calcium acetate + calcium propanoate (C) calcium acetate + calcium acetate (D) calcium formate + calcium acetate

12.

Aldehyde which is formed during photosynthesis of plants is : (A) Methanal (B) Acetaldehyde (C)

13.

(D)

Hg 2  / H 

(B)

(C)

(D)

An organic compound X gives a red precipitate on heating with Fehling’s solution. Which one of the following reactions yields X as a major product? (i) CH MgI (ii) H 2O

(A)

3 HCHO  

(C)

2C2 H 5 Br  Ag 2 O 





(B)

C2 H 5 Br  AgOH 

(D)

2 4 C2 H 2  H 2 O  1% HgSO

40% H SO 60 C

15.

Phenylmethanl

Ph  C  C  CH 3  A, A is : (A)

14.

Propanal

4

Trichloroacetaldehyde are was subjectd to Cannizaro’s reaction by using NaOH. The mixture of the products contains sodium trichloroacetate ion and another compound. The other compound is : (A) 2, 2, 2-trichloropropanol (B) trichloromethanol (C) 2, 2, 2-trichloropropanol (D) chloroform

VMC/ Oxygen Containing Organic Compounds - II

12

HWT-7/Chemistry

Vidyamandir Classes DATE :

TIME : 25 Minutes

MARKS : [ ___ /15]

TEST CODE : ALD K [2]

START TIME :

END TIME :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 15 Objective Type Questions. Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits : (A) geometrical isomerism (B) optical isomerism (C) neither optical nor geometrical isomerism (D) both optical and geometrical isomerism

2.

Benzaldehyde and acetone can be best distinguished using. (A) Fehling’s solution (B) (C) 2, 4-DNP (D)

3.

Dil. NaOH Heat

sodium hydroxide solution Tollen’s reagent

HCN

CH 3CHO  HCHO  A   B . The structure of compound B is :  H 3O

(A)

CH 2  CH  CH  COOH | OH

(B)

CH 2  CH  CH  OH | CN

(C)

CH 3CH 2  CH  COOH | OH

(D)

CH 3  CH  COOH | OH

4.

The most reactive compound towards formation of cyanohydrin on treatment with HCN followed by acidification is : (A) benzaldehyde (B) p-nitrobenzaldehyde (C) phenylacetaldehyde (D) p-hydroxybenzaldehyde

5.

Identify the reaction which is used to obtain   hydroxy carbonyl compounds. (A)

6.

Condensation reaction (B)

Aldol condensation (C)

Cross aldol condensation (D)

Cannizaro reaction

An aromatic compound ‘X’ with molecular formula C9H10O gives the following chemical tests. I. Forms 2, 4-DNP derivative II. Reduces Tollen’s reagent III. Undergoes Cannizaro reaction and IV. On vigorous oxidation 1, 2-benzenedicarboxylic acid is obtained X is :

(A)

(B)

(C)

(D)

7.

Which of the following compounds would be the main product of an aldol condensation of acetaldehyde and acetone? (A) (CH3)2C = CHCOCH3 CH 3CH  CH·CHO (B) CH 3CH  CHCOCH 3 (C) (CH 3 )2 C  CH·CHO (D)

8.

Which factor/s will increase the reactivity of > C = O group? I. Presence of a group with positive inductive effect. II. Presence of a group with negative inductive effect. III. Presence of large alkyl group. (A) Only I (B) Only II (C)

VMC/ Oxygen Containing Organic Compounds - II

I and III

13

(D)

II and III

HWT-7/Chemistry

Vidyamandir Classes 9.

An organic compound X is oxidised by using acidified K2Cr2O7. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structure of X is : (A)

10.

CH3CH2OH LiAlH

(B) Cu

(C)

(CH3)2CHOH

(D)

CH3CHO

ketol

(D)

acetal

+2

(D)

Zero

Dilute NaOH

4  X  CH3COOH   Y   Z . In the above reaction Z is : 

3000 C

(A) 11.

CH 3  C  CH 3 || O

butanol

(B)

aldol

(C)

What is the oxidation number of carbonyl carbon in acetophenone? (A) +3 (B) +1 (C)

12.

An organic compound of molecular formula C3H6O did not give a silver mirror with Tollen’s reagent, but gave an oxime with hydroxylamine, it may be : (A) C2H5CHO (C) CH 2  CH  CH 2  OH (D) CH 3  CO  CH 3 (B) CH 3  O  CH  CH 2

13.

In the following reaction sequence, the correct structures of E, F and G are :

14.

(A)

(B)

(C)

(D)

A compound X undergoes reduction with LiAlH4 to yield Y. When vapours of Y are passed over freshly reduced copper at

300 C , X is formed. What is Y? (A) CH3COCH3 (B) 15.

CH3CHO

(C)

CH3CH2OH

(D)

CH3OCH3

Acetone on addition to methyl magnesium bromide forms a complex, which on decomposition with acid gives X and Mg(OH)Br. Which one of the following is X? (A) CH3OH (B) (CH3)3COH (C) (CH3)2CHOH (D) CH3CH2OH

VMC/ Oxygen Containing Organic Compounds - II

14

HWT-7/Chemistry

Vidyamandir Classes DATE :

TIME : 25 Minutes

MARKS : [ ___ /15]

TEST CODE : ALD K [3]

START TIME :

END TIME :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 15 Objective Type Questions. Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

p-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form the compound B. The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is :

(A)

(B)

(C)

(D)

(A)

(B)

(C)

(D)

2.

3.

4.

Claisen condensation is not given by : (A)

(B)

(C)

(D)

Which reaction intermediate is formed during the condensation reaction between acetaldehyde and formaldehyde? 

(A)

: CH 2 CHO

(B)

C H 2 CHO



(C)

C H 2 OH

(D)

: CHCHO

(C)

acetal

(D)

hemiacetal

(B) (D)

acetaldehyde formaldehyde

5.

(A)

(B)

(C)

(D)

6.

is : (A)

7.

an ester

(B)

an anhydride

The Cannizaro reaction is not given by : (A) trimethyl acetaldehyde (C) benzaldehyde

VMC/ Oxygen Containing Organic Compounds - II

15

HWT-7/Chemistry

Vidyamandir Classes 8.

The increasing order of the rate of HCN addition to compound A  D is : (a) (A)

HCHO a (I)

2-propanol

meta-formaldehyde urotropine

(B) (D)

Which of the following give an explosive RDX, on nitration? (A) Toluene (B) Benzene (C)

para-formaldehyde None of these

Guanidine

9.

When benzaldehyde reacts with acetophenone in presence of sodium hydroxide, then product on heating is : (A) C6H5CH = CHCOC6H5 (B) C6H5COCH2C6H5 (C) C6H5CH = CHC6H5 (D) C6H5CH(OH)COC6H5

10.

The number of aldol reaction(s) that occurs in the given transformation is :

(A)

1

(B)

2

VMC/ Oxygen Containing Organic Compounds - II

(C)

3

19

(D)

4

HWT-7/Chemistry

Vidyamandir Classes 11.

The compound that undergoes decarboxylation most readily under mild condition is :

(A) 12.

13.

(B)

Iodoform can be prepared from all except : (A) ethyl methyl ketone (C) 3-methyl-2-butanone

(C)

(B) (D)

(D)

iso-propyl alcohol iso-butyl alcohol

In the given transformation, which of the following is the most appropriate reagent ?



(A)

NH 2 , NH 2 , O H

(B)

Zn  Hg / HCl

(C)

Na, Liq. NH3

(D)

NaBH4

14.

Upon treatment with Al(OEt)3 followed by usual reactions (work up) CH3CHO will produce : (A) only CH3COOCH2CH3 (B) a mixture of CH3COOH and EtOH (C) only CH3COOH (D) only EtOH

15.

An organic compound ‘A’ burns with a soaty flame. It is negative towards Tollen’s reagent test and positive for Brady’s reagent test. The compound ‘A’ is : (Brady’s reagent : 2, 4-DNP hydrazine) (A) Acetophenone (B) Acetone (C) Salicyclic acid (D) Benzaldehyde

VMC/ Oxygen Containing Organic Compounds - II

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HWT-7/Chemistry