BSEB 12th Exam Chemistry VVI Important Objective Question Chapter Wise
11. ALCOHOLS, PHENOLS AND ETHERS
1. Which of the following alcohols gives 2-butene on dehydration by conc. H2SO4?
(A) 2-Methyl propene-2-ol
(B) 2-Methyl 1-propanol
(C) Butane-2-ol
(D) Butane 1-ol
| Answer :- (C) |
2. The functional group of alcohol is :
(A) -COOH
(B) -CHO
(C) -C= O
(D) -OH
| Answer :- (D) |
3. Alcohol is formed when one of the hydrogen of Alkane is replaced by :
(A) Hydroxyl group
(B) Aldehyde group
(C) Carboxylic group
(D) Chloro group
| Answer :- (A) |
4. Which of the following is most acidic ?
(A) Benzyl alcohol
(B) Cyclohexanol
(C) Phenol
(D) m-Chlorophenol
| Answer :- (D) |
5. The formula of Phenol is :
(A) C6H5OH
(B) C2H5OH
(C) C3H4OH
(D) C6H6
| Answer :- (A) |
6. The I.U.P.A.C. name of CH3OC2H5 is
(A) Methoxy methane
(B) Ethoxy ethane
(C) Ethoxy methane
(D) None
| Answer :- (D) |
7. The formula of methanol is :
(A) CH3OH
(B) CH3ONa
(C) HCHO
(D) CH4
| Answer :- (A) |
8. The product obtained when silica reacts with hydrogen fluoride is :
(A) SiF4
(B) H2SiF6
(C) H2SIF4
(D) HASIF
| Answer :- (C) |
9. Which of the following is a formula of methoxy methane ?
(A) CH3OCH3
(B) CH3COCH3
(C) C2H5OCH3
(D) C2H5COCH3
| Answer :- (B) |
10. Formula of oleum is :
(A) H2S2O7
(B) H2SO4
(C) H2SO3
(D) H2SO5
| Answer :- (A) |
11. Ethanol when heated with excess of conc. H2SO4 at 170° C gives :
(A) Ethane
(B) Ethene
(C) Dimethyl ether
(D) Ethyl hydrogen Sulphate
| Answer :- (A) |
12. Ethanol is soluble in water because it forms :
(A) Ionic bond with water
(B) Covalent bond with water
(C) Hydrogen bond with water
(D) All of these
| Answer :- (C) |
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