Target Test

Chemistry - Section A

1.

Which set of reactants among the following produces anisole?
1. CH₃CHO, RMgX
2. C₆H₅OH, NaOH, CH₃I
3. C₆H₅OH, neutral FeCl₃
4. C₆H₅-CH₃, CH₃COCl, AlCl₃

2.

The general molecular formula, which represents the homologous series of alkanols is
1. C_nH_2nO₂
2. C_nH_2nO
3. C_nH_2n+1O
4. C_nH_2n+2O

3.

The solubility of phenol in water is lower. This can be attributed to:
1. Non-polar nature of phenol
2. Acidic nature of -OH group
3. Non-polar hydrocarbon part in phenol
4. None of the above

4.

Phenol and benzoic acid can be distinguished by:
1. Aqueous NaHCO₃
2. Aqueous NaNO₃
3. Aqueous NaOH
4. Conc. H₂SO₄

5.

By which reaction, ethyl chloride can be converted into diethyl ether?
1. Wurtz synthesis
2. Grignard reaction
3. Perkin's reaction
4. Williamson's synthesis

6.

The dehydration of neo-pentanol yields mainly:

1.
2.
3.
4.	None of the above

7.

In the following sequence of reactions, the product (C) is:
CH₃CHO $\to_{Pd}^{H_{2}}$ (A) $\overset{Na}{\to}$ (B) $\overset{{CH}_{3} I}{\to}$ (C)
1. Alcohol.
2. Ether.
3. Alkene.
4. None of the above.

8.

The value of C-O-C angle in ether molecule is :
1. 180 $°$
2. 150 $°$
3. 90 $°$
4. 110 $°$

9.

The products formed in the following reaction, C₆H₅-O-CH₃ + HI $\overset{Heat}{\to}$ are-
1. C₆H₅OH and CH₃I
2. C₆H₅I and CH₃OH
3. C₆H₅CH₃ and HOI
4. C₆H₆ and CH₃OI

10.

Butan-2-ol is a-
1. Primary alcohol
2. Secondary alcohol
3. Tertiary alcohol
4. None of the above

11.

Primary alcohols can be obtained from the reaction of the RMgX with:
1. HCHO
2. H₂O
3. CO₂
4. CH₃CHO

12.

The commonly used dehydrating agent in the preparation of an ester is :
1. P₂O₅
2. Anhydride CaCl₂
3. Anhydride AlCl₃
4.Conc. H₂SO₄

13.

Which of the following is most acidic?
1. p-cresol
2. p-chlorophenol
3. p-nitrophenol
4. p-aminophenol

14.

A compound X with molecular formula C₃H₈O can be oxidised to a compound Y with the molecular formula C₃H₆O₂. X is most likely to be:
1. Primary alcohol
2. Secondary alcohol
3. Aldehyde
4. Ketone

15.

Which represents Riemer-Tiemann reaction?

(a)
(b)
(c)
(d)

16.

Isopropyl alcohol and n-propyl alcohol are:
1. Position isomers
2. Chain isomers
3. Functional isomers
4. None of the above

17.

The most acidic compound among the following is:

1.		2.
3.		4.

18.

The compound B formed in the following sequence of reactions,
CH₃CH₂CH₂OH $\overset{{PCl}_{5}}{\to}$ A $\overset{Alc . NaOH}{\to}$ B will be:
1. Propyne
2. Propene
3. Propanal
4. Propane

19.

can be repared from williamson's synthesis using

1.
2.
3.
4.	All of these

1. and C₆H₅CH₂ONa
2. C₆H₅CH₂Cl and
3. and C₆H₅ONa
4. All of these

20.

Methanol and ethanol can be distinguished by the following:
1. By reaction with metallic sodium
2. By reaction with caustic soda
3. By heating with iodine and washing soda
4. By heating with zinc and inorganic mineral acid

21.

The number of moles of HI consumed by the given compound is:

1.	1	2.	2
3.	3	4.	4

22.

R-CH₂-CH₂OH can be converted into RCH₂CH₂COOH. The correct sequence of reagents is:
1. PBr₃, KCN, H⁺
2. PBr₃, KCN, H₂
3. KCN, H⁺
4. HCN, PBr₃, H⁺

23.

The major product in the acid catalysed dehydration of would be
1.
2.
3.
4.

24.

Which of the following compounds is most prone to oxidation?

1.	$\mathrm{CH}_3-\mathrm{CHOH}-\mathrm{CH}_3$	2.
3.	$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3$	4.

25. Product (A) in the reaction below is:

1.		2.
3.		4.

26.

Which of the following reagents can convert acetic acid into ethanol?
(1) Sn + HCl
(2) H₂ + Pt
(3) LiAlH₄ + ether
(4) Na + alcohol

27.

Product C in the following sequence of reactions is:
$C_2H_5Br \xrightarrow{NaOH\text{(aq)}}\ A \xrightarrow{Na}\ B\ \xrightarrow{CH_3I}\ C$

1.	Butane	2.	Ethane
3.	Methyl ethyl ether	4.	Propane

28.

Diethyl ether may be regarded as an anhydride of:
1. C₂H₅COOH
2. C₂H₅OH
3. C₂H₅CHO
4. C₂H₅COOC₂H₅

29.

Phenol is:
1. a stronger base than NH₃
2. an acid stronger than carbonic acid
3. an acid weaker than carbonic acid
4. None of the above

30.

Identify Z in the following series,
CH₃-CH₂-CH₂OH $\to_{160 - 180 ° C}^{Conc . H_{2} {SO}_{4}} X \overset{{Br}_{2}}{\to} Y \to_{2 . {NaNH}_{2}}^{1 . Alc . KOH} Z$
1. ${CH}_{3} — CH — {CH}_{2}$
$| |$
${NH}_{2} {NH}_{2}$
2. ${CH}_{3} — CH — {CH}_{2}$
$| |$
$OH OH$
3. ${CH}_{3} — C = {CH}_{2}$
$|$
$OH$
4. ${CH}_{3} — C \equiv CH$

31.

Carbolic acid is the name used for:
1. Opium
2. Phenol
3. Chloroform
4. H₂CO₃

32.

Phenyl ethyl ether with concentrated hydrobromic acid on boiling yields:-
1. Phenol and ethyl bromide
2. Bromobenzene and ethanol
3. Phenol and ethane
4. Bromobenzene and ethane

33.

Phenol on treatment with dil. HNO₃ at room temperature gives-

1.
2.
3.
4.	All of the above

34.

Which of the following is not the product of dehydration of

1.
2.
3.
4.

35.

Among the following ethers, the one that will produce methyl alcohol on treatment with hot concentrated HI is:

1.		2.
3.		4.

Chemistry - Section B

36.

Which of the following reaction sequences effectively transforms m-nitrophenol into resorcinol ?
1. Reduction, diazotisation, and hydrolysis
2. Hydrolysis, diazotisation, and reduction
3. Hydrolysis, reduction, and diazotisation
4. Diazotization, reduction, and hydrolysis

37.

Find out P, Q , and R in the below-mentioned sequence of reactions:

1.
2.
3.
4.

38.

Alkyl halides prepared by among the following reaction(s) is/are:

I.	$CH_3CH_2OH+HCl\xrightarrow{\bf{anh. ZnCl_2}}$
II.	$CH_3CH_2OH+HCl→$
III.	$(CH_3)_3COH+HCl→ $
IV.	$(CH_3)_2CHOH+HCl\xrightarrow{\bf{anh.ZnCl_2}}$

1.	I, III, and IV	2.	I and II
3.	Only IV	4.	III and IV

39.

The compound, among the following, that will not be soluble in sodium hydrogen carbonate is:

1.	2, 4, 6-Trinitrophenol	2.	Benzoic acid
3.	o-Nitrophenol	4.	Benezenesulphonic acid

40.

Which of the following compounds produces methyl alcohol on treatment with hot concentrated HI?

1.
2.
3.
4.

41.

The most acidic compound among the following is:

1.		2.
3.		4.

42.

CH₃ — O — CH(CH₃)₂ + HI → B (Product)
The product 'B' in the above mentioned reaction is-
1. CH₃OH + (CH₃)₂CHl
2. lCH₂OCH(CH₃)₂
3. CH₃OC(CH₃)₂
4. CH₃l + (CH₃)₂CHOH

43.

The compound that is most difficult to protonate is:

1.		2.
3.		4.

44.

Arrange the reactivity of alcohols in decreasing order for E1 elimination reaction:

I
II
III
IV

Select the correct answer from the codes given below :
Codes :
1. III > II > IV > I
2. II > III > IV > I
3. II > III > I > IV
4. III > II > I > IV

45.

The product in the below mentioned reaction is:

1.
2.
3.	C₆H₅OC₆H₅
4.	C₂H₅OC₂H₅

46.

The product 'B' in the below mentioned reaction is-

1. Phenol
2. Benzol
3. Sodium benzoate
4. Benzal

47.

Consider the following reaction:
is
1.
2.
3.
4. None of these

48.

In the following reaction sequence, X and Y are:

1.
2.
3.
4.

49.

A dizonium salt reacts with a phenol to give an azo dye.
This reaction is known as:
(1) diazotisation
(2) condensation
(3) coupling
(4) reduction

50.

Which of the following substituted phenols is the strongest acid?

1.		2.
3.		4.

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1.	\(\mathrm{CH}_3-\mathrm{CHOH}-\mathrm{CH}_3\)	2.
3.	\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\)	4.

I.	\(CH_3CH_2OH+HCl\xrightarrow{\bf{anh. ZnCl_2}}\)
II.	\(CH_3CH_2OH+HCl→\)
III.	\((CH_3)_3COH+HCl→ \)
IV.	\((CH_3)_2CHOH+HCl\xrightarrow{\bf{anh.ZnCl_2}}\)

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