Top 150+ Solved Pharmaceutical Organic Chemistry 1 MCQ Questions Answer
Q. Propene is the product obtained by dehydrogenation of …….
a. 2-propanol
b. 1-propanol
c. Propanal
d. n -propyl alcohol
Q. Which of the following statements is correct…..
a. Phenol is less acidic than ethyl alcohol
b. Phenol is more acidic than ethyl alcohol
c. Phenol is more acidic than carboxylic acid
d. Phenol is more acidic than carbonic acid
Q. Boiling point of alcohol is comparatively higher than that corresponding alkane due to…….
a. Intermolecular hydrogen bonding
b. Intramolecular hydrogen bonding
c. Volatile nature
d. None of these
Q. . The reaction of C2H5OH with H2SO4 does not give ……
a. Ethylene
b. Diethyl ether
c. Acetylene
d. Ethyl hydrogen sulphate
Q. In reaction of alcohols with alkali metal, acid etc. which of the following alcohol will react fastest….
a. Secondary
b. Tertiary
c. Primary
d. All equal
Q. Order of reactivity of alcohols towards sodium metal is ……
a. Pri > Sec > Ter
b. Pri > Sec <Ter
c. Pri < Sec > Ter
d. Pri < Sec < Ter
Q. The -OH group of methyl alcohol cannot be replaced by chlorine by the action of……
a. Chlorine
b. Hydrogen chloride
c. Phosphorus trichloride
d. Phosphorus pentachloride
Q. Which compound has the highest boiling point……
a. Acetone
b. Diethyl ether
c. Methanol
d. Ethanol
Q. Absolute ethanol cannot be obtained by simple fraction of a solution of ethanol and water because…..
a. Their B.P.'s are very nearer
b. Ethanol remains dissolved in water
c. They form a constant boiling mixture
d. Ethanol molecules are solvated
Q. In esterification, the reactivity of alcohols is ……
a. 1° > 2° > 3°
b. 3° > 2° > 1°
c. Same in all cases
d. None of these
Q. Methanol and ethanol are distinguished by the…….
a. Action of HCl
b. Iodoform test
c. Solubility in water
d. Sodium
Q. Ethyl alcohol exhibits acidic character on reacting with…….
a. Acetic acid
b. Sodium metal
c. Hydrogen iodide
d. Acidic potassium dichromate
Q. Which of the following is not characteristic of alcohols……
a. They are lighter than water
b. Their boiling points rise fairly uniformly with increasing molecular weight
c. Lower members are insoluble in water and organic solvents but solubility regularly increases with molecular weight
d. Lower members have pleasant smell and burning taste, while higher members are odourless and tasteless
Q. By means of calcium chloride which of following can be dried……
a. Methanol
b. Ethanol
c. Both (a) and (b)
d. None of these