MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Chemistry MCQ
Alcohols, Phenols And Ethers Mcq Neet Chemistry
Quiz 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Q.1
Propan-2-ol on reacting with Cl2 produces .... ....
0%
a) acetone
0%
b) trichloroethanal
0%
c) trichloroacetone
0%
d) none of these
Explanation
Answer : (c)
Q.2
Methyl alcohol on oxidation with acidified K2Cr2O7 gives .... .....
0%
a) CH3CHO
0%
b) CH3COOH
0%
c) CH3COCH3
0%
d) HCOOH
Explanation
acidified K2Cr2O7 is oxidizing agent, Alcohol converted to aldehyde and then converted to acid oxidation reaction is as follows CH3OH → HCHO → HCOOH Answer : (d)
Q.3
R-CH = CH2 reacts with B2H6 in presence H2O2 to give
0%
a) RCOCH3
0%
b) RCHOHCH2OH
0%
c) RCH2CH2OH
0%
d) RCH2CHO
Explanation
The process is called hydroboration and is used to convertterminal alkenes to 1-ol Answer : (c)
Q.4
Assertion: p-nitrophenol is a stronger acid than o-nitrophenol Reason: Intra-molecular hydrogen bonding makes the o-isomer weaker than the p-isomer
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.5
The reaction RCOOH + C2H5OH + Na → RCH2OH is called
0%
a) Corey House reaction
0%
b) Bonveault-Blanc reduction
0%
c) Clemmensen reduction
0%
d) none of the above
Explanation
Reduction of acid and acid derivatives producing alcohol by C2H5OH + Na is called Bonveault-blanc reaction Answer : (b)
Q.6
Tonics usually contain small amount of ... ....
0%
a) vinegar
0%
b) ether
0%
c) formalin
0%
d) alcohol
Explanation
Answer : (d)
Q.7
Glycerol on worming with excess of HI
0%
a) 1,2,3-tri-iodopropane
0%
b) 1-iodopropane
0%
c) 2-iodopropane
0%
d) none of the above
Explanation
Answer : (c)
Q.8
Ethyl acetate is treated with double the molar quantity of C2H5MgBr and the reaction mixture is hydrolysed with water. The product is .... ..
0%
a) CH3COOC2H5
0%
b)
0%
c) (C2H5)2CHOH
0%
d) C2H5OH
Explanation
Answer : (b)
Q.9
Which of the following is tertiary alcohol?
0%
a) CH3 - CH2 - OH
0%
b)
0%
c)
0%
d) CH2 = CH2 - OH
Explanation
Answer : (b)
Q.10
Cyclohexanol is a ... ...
0%
a) primary alcohol
0%
b) sec-alcohol
0%
c) tert-alcohol
0%
d) phenol
Explanation
It Contains ">CHOH" group Answer : (b)
Q.11
During fermentation little H2SO4 is added ... ...
0%
a) Which acts as dehydrating agent
0%
b) to get acidic medium
0%
c) to hydrolyse the glucose solution
0%
d) to prevent the growth of undesirable bacteria
Explanation
Answer : (d)
Q.12
on Q463) Identify Z in following series
0%
a) CH3 - CH2 - SO3H
0%
b) CH2 = CH2
0%
c) CH3 - CH2 - O - CH2 - CH3
0%
d) CH3 - CH2 - OH
Explanation
Answer : (d)
Q.13
Assertion: o- and p-nitrophenols can be separated by steam distillation Reason: o-nitrophenols have intra-molecular hydrogen bonding while p-nitrophenols exists as associated molecules
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.14
Assertion: Alcohol have higher boiling points than corresponding ethers of comparable molecular masses Reason: Alcohols and ethers are isomeric in nature
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (b)
Q.15
Assertion: Isobutanal does not give iodoform test Reason: It does not have α-hydrogen
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.16
Assertion: t-butyl methyl ether is not prepared by the reaction of t-butyl bromide with sodium methoxide Reason:Sodium methoxide is a strong nucleophile
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.17
ion: Alcohol and phenol can be distinguished by sodium hydroxide Reason: Phenol is more acidic than alcohol
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (b)
Q.18
Assertion: Alcohols are dehydrated to thydrocarbons in presence of acidic zerolites Reason: Zerolites are porous catalysts
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.19
Assertion: Ethers behaves as base in the presence of mineral acids Reason: Due to the presence of lone pairs of electrons on oxygen
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.20
The pHa of acetic acid is lower than that of phenol Reason: Phenoxide ion is more resonance stabilized
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.21
Primary alcohols can be obtained from the reaction of RMgX with .... .....
0%
a) H2O
0%
b) CH3CHO
0%
c) CO2
0%
d) HCHO
Explanation
Answer : (d)
Q.22
Which are explosives?
0%
a) Wood pulp (dynamite)
0%
b) Cellulose nitrate (blasting gelatine)
0%
c) Gun cotton or cellulose nitrate and vaseline (cordite)
0%
d) All the above
Explanation
Answer : (d)
Q.23
Ether are very good solvent for which type of compounds?
0%
a) Lewis base
0%
b) Acids
0%
c) Lewis acids
0%
d) None of these
Explanation
Ethers are Lewis base and forms complex compounds with Lewis acids Answer : (c)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page