An alcohol (x) gives blue colour in victormayer’s test and 3.7g of X when treated with metallic sodium liberates 560 mL of hydrogen at 273 K and 1 atm pressure what will be the possible structure of X?

(a)

CH₃ CH (OH) CH₂CH₃

(b)

CH₃ – CH (OH) – CH₃

(c)

CH₃ – C (OH) – (CH₃)₂

(d)

CH₃- CH₂ –CH (OH) – CH₂ – CH₃

Which of the following compounds on reaction with methyl magnesium bromide will give tertiary alcohol.

(a)

benzaldehyde

(b)

propanoic acid

(c)

methyl propanoate

(d)

acetaldehyde

The X is _______.

(a)

(b)

(c)

(d)

None of these

In the reaction sequence, Ethane \(\overset { HOCl }{ \longrightarrow } A\overset { x }{ \longrightarrow } \) ethan -1, 2 - diol. A and X respectively are ________.

(a)

Chloroethane and NaOH

(b)

ethanol and H₂SO₄

(c)

2 – chloroethan -1-ol and NaHCO₃

(d)

ethanol and H₂O

Which one of the following is the strongest acid.

(a)

2 - nitrophenol

(b)

4 – chlorophenol

(c)

4– nitrophenol

(d)

3 – nitrophenol

on treatment with Con H₂SO₄, predominately gives______.

(a)

(b)

(c)

(d)

Carbolic acid is _____.

(a)

Phenol

(b)

Picri cacid

(c)

benzoic acid

(d)

phenylacetic acid

Which one of the following will react with phenol to give salicyladehyde after hydrolysis.

(a)

Dichlo methane

(b)

trichloroethane

(c)

trichloro methane

(d)

CO₂

(CH₃)₃-C-CH(OH) CH₃ \(\overset { con{ H }_{ 2 }{ SO }_{ 4 } }{ \longrightarrow } \)X (major product)

(a)

(CH₃)₃ CCH = CH₂

(b)

(CH₃)₂C = C (CH₃)₂

(c)

CH₂= C(CH₃)CH₂-CH₂- CH₃

(d)

CH₂= C (CH₃) - CH₂- CH₂- CH₃

The correct IUPAC name of the compound

(a)

4 – chloro – 2,3 – dimethyl pentan – 1-ol

(b)

2,3 – dimethyl – 4- chloropentan -1-ol

(c)

2,3,4 – trimethyl – 4- chlorobutan -1-ol

(d)

4– chloro – 2,3,4 – trimethyl pentan – 1-ol

Assertion: Phenol is more acidic than ethanol
Reason: Phenoxide ion is resonance stabilized
Codes:
a) both assertion and reason are true and reason is the correct explanation of assertion.
b) 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.

In the reaction Ethanol \(\overset { { PCl }_{ 5 } }{ \longrightarrow } X\overset { alc.KOH }{ \longrightarrow } Y\overset { { H }_{ 2 }{ SO }_{ 4 }/{ H }_{ 2 }O }{ \underset { 298k }{ \longrightarrow } } Z.\) The ‘Z’ is ______.

(a)

ethane

(b)

ethoxyethane

(c)

ethylbisulphite

(d)

ethanol

The reaction

Can be classified as ______.

(a)

dehydration

(b)

Williams on alcoholsynthesis

(c)

Williamson ether synthesis

(d)

dehydrogenation of alcohol

Assertion: Phenol is more reactive than benzene towards electrophilic substitution reaction
Reason: In the case of phenol, the intermediate arenium ion is more stabilized by resonance
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.

HO CH₂ CH₂ – OH on heating with periodic acid gives  ______.

(a)

methanoic acid

(b)

Glyoxal

(c)

methanol

(d)

CO₂

Which of the following compound can be used as antifreeze in automobile rediators?

(a)

methanol

(b)

ethanol

(c)

Neopentyl alcohol

(d)

ethan -1, 2-diol

The reactions
 is an example of  ______.

(a)

Wurtz reaction

(b)

cyclic reaction

(c)

Williamson reaction

(d)

Kolbe reactions

One mole of an organic compound (A) with the formula C₃H₈O reacts completely with two moles of HI to form X and Y. When Y is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound (A) is  ______.

(a)

propan – 2-ol

(b)

propan -1-ol

(c)

ethoxy ethane

(d)

methoxy ehane

Among the following ethers which one will produce methyl alcohol on treatment with hot HI?

(a)

(H₃C)₃C-O-CH₃

(b)

(CH₃-)₂-CH-CH₂-O-CH₃

(c)

CH₃-(CH₂)₃-O-CH₃

(d)

CH₃-CH₂-\(\underset { \overset { | }{ { CH }_{ 3 } } }{ CH } \)-O-CH₃

Williamson synthesis of preparing dimethyl ether is a / an  ______.

(a)

SN¹ reactions

(b)

SN² reaction

(c)

electrophilic addition

(d)

electrophilic substitution

On reacting with neutral ferric chloride, phenol gives  ______.

(a)

red colour

(b)

violet colour

(c)

dark green colour

(d)

no colouration.

Isoprophylbenzene on air oxidation in the presence of dilute acid gives ______.

(a)

C₆H₅COOH

(b)

C₆H₅COCH₃

(c)

C₆H₅COC₆H₅

(d)

C₆H₅- OH