12th class (Fsc) Chemistry unit 11 MCQs
chapter 11 MCQs 12th Class Chemistry
Alcohols, Phenols And Ethers:
1. The IUPAC name for propylene glycol is:
a. 2,2-propanediol
b. 2-propane-1-oI
c. 1,2-propanediol
d. 1,3,propane diol
2. 2-methyl-2-propanol on treating with acid dichromatic produce:
a. Isobutylene
b. Propanone
c. None of them
d. 2-Butanone
3. Propylene glycol is a:
a. Monohydric alcohol
b. Tertrahydric alcohol
c. Trihydric alcohol
d. Dihydric alcohol
4. Glycerol is a:
a. Dihydric alcohol
b. Tertiary alcohol
c. Monohydric alcohol
d. Trihydric alcohol
5. The IUPAC name of the ethylene glycol is:
a. 1,2-ethanediol
b. 1,1ethanediol
c. None of them
d. 2,2-ethanediol
6. Neo-pentyl alcohol is:
a. Tertiary alcohol
b. Secondary lcohol
c. Phenol
d. Primary alcohol
7. The IUPAC name of iso-butyl alcohol is:
a. 2-methyl-1-1- propanol
b. 2-butanol
c. 2-mthyl,1 1-utanol
d. 2-methyl,2- propanol
8. When 2-propanol under goes oxidation the product is:
a. Propanone
b. Pentanal
c. Pentanoicaicd
d. 2-pentanone
9. Methyl alcohol is also called:
a. Carbinol
b. Wood spirit
c. Wood naptha
d. All of these
10. The compound containing -OH group in their molecules are called:
a. Alcohols and phenols
b. Alcohols
c. Alcohols and ethers
d. Phenols
11. The general formula of alcohol is:
a. R-COOH
b. R-OH
c. R-CHO
d. RCOOR
12. Alcohols are classified into:
a. Monohydric and trihydric
b. Monohydric and dihydric
c. None of these
d. Monohydric and polyhydric
13. Monohydric alcohols are classified into:
a. Sec and ter. alcohols
b. Pr. and see. alcohols
c. None of these
d. Pr. sec and ter. alcholos
14. Alcohols are:
a. Amphoteric in nature
b. Basic in nature
c. Neutral in nature
d. Acidic in nature
15. The IUPAC. name of tertiary butyl alchol is:
a. 2,2-dimethyle-1- ol
b. 2-methyl-2- propanol
c. 2-methyl-1- propanol
d. None of these
16. The number of structural isomers of an alcohol with molecular formula C3 H7 OH is:
a. 3
b. 5
c. 2
d. 4
17. Methanol is also called:
a. Denatured alcohol
b. Rectified spirit
c. Wood spirit
d. Grain alcohol
18. Methyl alcohol:
a. Used as solvent
b. Has burning taste
c. Is poisonous
d. All of these
19. ROH+HX → H O + ……:
a. R-O-R
b. ROX
c. R-X
d. R-H
20. Dehydration of ethyl alcohol yields:
a. Acid
b. Aldehyde
c. Alkene
d. Ketone
21. Which of the following is used as antifreeze/
a. Diethy ether
b. Ethylene glyco
c. Picric acid
d. Glycerol
22. Lucas reagents are:
a. HCL/ZnCI
b. HCL/NaNO2
c. I2 /pd
d. None of these
23. A biochemical process brought about by certain enzymes secreted by microoganisms is called:
a. Photosynthesis
b. Respiration
c. Evolution
d. Fermentation
24. Ethyl alcohol is prepared on industrial scale by fermentation of;
a. Molasses
b. Fruits juices
c. Starch
d. All of these
25. Glucose in the presence of enzymes is converted into:
a. Ethyl alcohol
b. Methyl alcohol
c. Ketone
d. Aldehyde