Homework Alcohol, Ether & Phenol
Alcohol, Ether & Phenol
1. Which of the following is polyhydric alcohol :
(a) CH3—CHOH—CH2OH (b) CH3—CHOH—CHOH—CH2OH
(c) CH2OH—CH2OH (d) C6H5—CHOH—CH3
2. Oxidation number of carbon in which compound is minium :
(a) Alcohol (b) Aldehyde (c) Ketone (d) Carboxylic acid
3. Alkene can be converted into alcohol by which reaction :
(a) Displacement reaction (b) Elimination reaction (c) Addition reaction (d) Reduction reaction
4. Alcohol can be prepared from alkene by which of the following reactions :
(a) Elimination (b) Substitution (c) Reduction (d) Oxidation
5. In the given reaction
2 Moist Ag O
CH3 CH2 Br X
[X] will be :
(a) Ethanol (b) Diethyl ether (c) Propane (d) Propyne
6. Which of the following reagents convert alkene into alcohol ?
(a) HOH/H2SO4 (b) (i) BH3 (ii) NaBH4
(c) (i) Hg(OAc)2 (ii) H2O2/OH– (d) All of these
7. Conversion of isobutene into isobutyl alcohol can be possible with :
(a) HOH/H (b) BH3 followed by H2O2/OH
(c) Conc. H2SO4 followed by HOH (d) All of these
8. Propananl can be converted into 1–propanol by :
(a) KMnO 4/H / (b) KMnO 4/OH/ (c) NH 2—NH 2/OH/ (d) NaBH4
9. In the given reaction :
X
CH2 CH CHO CH2 CH CH2OH
[X] will be :
(a) H2 / Ni / (b) Pt/H2 (c) NaBH4 (d) H2/Wilkinson catalyst
10. MPV reduction is given by :
(a) Aldehydes (b) Ketones
(c) Both aldehydes and ketones (d) Carboxylic acids
11. In the reaction sequence :
X
C6H5 CH CH CHO C6H5 CH2 CH2 CH2OH
[X] will be :
(a) LiAlH4 (b) NaBH4 (c) Aluminium isopropoxide(d) All of these
OH
12. C6H5—CH—CH3 can be prepared from which of the following combinations :
(a) C6H5—CHO and CH3MgCl (b) C6H5MgBr and CH3CHO
O
(c) C6H5—C—CH3 and NaBH4 (d) All of these
1 CatalyseR
Homework Alcohol, Ether & Phenol
13. Lithium aluminium hydride forms primary alcohol with :
(a) Ketone (b) Acid amide (c) Nitrite (d) Acid chloride
14. Tertirary alcohol can be prepared from :
(a) Ketone and NaBH4 (b) Aldehyde and RMgX (c) RCOOC2H5 and RMgX (d) HCOOC2H5 and RMgX
15. In the given reaction
O CH3
Na/C2H5OH
CH3 —C—O—C—CH3 (X) + (Y)
CH3
[X] and [Y] respectively be :
CH3
(a) CH3—CH2—OH and CH3—C—OH (b) CH3 —CH2 OH and CH3 —C CH2
CH3 CH3
CH3 CH3
(c) CH2 CH2 and CH3 C OH (d) CH3 CH2 O C CH3
CH3 CH3
16. The given reaction :
O OH
Aluminium isopropoxide
CH3 CH2 C CH3 Isopropyl alcohol
CH3 CH2 CH CH3
is known as :
(a) W. K. reduction (b) MPV reduction
(c) Bouveault–Blance reaction (d) Rosenmund reduction
17. In the given reaction
(i) CH 3MgBr
CH3 CH CH2 [X]
(ii) HOH/H
O
[X] will be :
OH
(a) CH3 CH CH2 OH (b) CH3 CH CH2 CH3 (c) CH3 C CH3 (d) CH3 CH CH2
CH3 OH CH3
18. Which of the following amines will give primary alcohol with NaNO2/conc. HCl :
CH3
(a) CH3 CH2 CH CH2 (b) CH3 C NH2
CH3 CH3
(c) CH3 CH CH2 CH2 NH2 (d) All of these
CH3
2 CatalyseR
Homework Alcohol, Ether & Phenol
19. Which of the following amines fomrs ether as one of the products with NaNO2/conc. HCl :
CH3
(a) CH3—CH2—NH2 (b) CH3—NH2 (c) CH3 C NH2 (d) C6H5—NH2
CH3
20. Consider the following reaction :
NH2 OH
NaNO /conc. HCl
2
CH3 CH CH3 CH3 CH CH3 + Some minor by product
Minor by product/(s) is/are :
(a) 2–Chloro propane (b) Propene (c) Isopropyl nitrite (d) All of these
21. In the reaction :
O
CH3
LiAlH 4
CH3 C O CH (A) + (B)
CH3
(a) (A) will give haloform (b) (B) will give haloform
(c) Both (A) and (B) will give haloform (d) Both (A) and (B) will not give haloform
22. Aliphatic primary amines on reaction with NaNO2/conc. HCl gives :
(a) Only p–alcohol (b) Only Sec alcohol (c) Only tert alcohol (d) Alcohol may be p, sec or tert
23. Which of the following reaction is example of SN2 reaction :
Anhy ZnCl2 /
(a) CH3 CH2 OH CH3 CH2 Cl
CH3 Cl
Anhy ZnCl2 /
(b) CH3 C CH2OH CH3 C CH2 CH3
CH3 CH3
OH Cl
Anhy ZnCl2/
(c) CH3 C CH3 CH3 C CH3
CH3 CH3
Anhy ZnCl2 /
(d) CH2 CH CH2 OH CH2 CH CH2 Cl
24. Which one of the following alcohols is most reactive for SN1 reaction ?
OH OH OH OH
(a) C6H5 C CH3 (b) C6H5 C C6H5 (c) CH3 C CH3 (d) CH3 CH CH3
CH3 CH3 CH3
25. The given reaction is :
Br
CH3 CH CH CH2 OH HBr CH3 CH CH CH2
(a) SN1 (b) SN1 (c) SN2 (d) E1
3 CatalyseR
