McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Pharmacy (B. Pharma) , Pharmacy .
Chapters
| 101. |
In the dichlorination reaction of propane, mixture of products are obtained. How many isomers, the mixture contains………… |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 102. |
Which of the following cycloalkane gives open chain compound, when reacts with bromine……….. |
| A. | Cyclopropane |
| B. | Cyclopentane |
| C. | Cyclohexane |
| D. | Cyclo-octane |
| Answer» A. Cyclopropane | |
| 103. |
Grignard reagent is not prepared in aqueous medium but prepared; in ether medium because the reagent………….. |
| A. | Reacts with water |
| B. | Is insoluble in water |
| C. | Is highly reactive in ether |
| D. | Becomes inactive in water |
| Answer» A. Reacts with water | |
| 104. |
A sample of petrol is a mixture of 30% n-heptane and 70% iso-octane. The sample has octane number………… |
| A. | 30 |
| B. | 70 |
| C. | 15 |
| D. | 35 |
| Answer» B. 70 | |
| 105. |
Photochemical chlorination of alkane is initiated by a process of…………… |
| A. | Pyrolysis |
| B. | Substitution |
| C. | Cracking |
| D. | Homolysis |
| Answer» D. Homolysis | |
| 106. |
A petroleum fraction having boiling range 70-200°C and containing 6-10 carbon atoms per molecule is called……….. |
| A. | Natural gas |
| B. | Gas oil |
| C. | Gasoline |
| D. | Kerosene |
| Answer» C. Gasoline | |
| 107. |
Pick out the alkane which differs from the other members of the group. |
| A. | 2,2-dimethyl propane |
| B. | Pentane |
| C. | 2-methyl butane |
| D. | 2,2-dimethyl butane |
| Answer» D. 2,2-dimethyl butane | |
| 108. |
2-Methylbutane on reacting with bromine in the presence of sunlight gives mainly…….. |
| A. | 1-bromo-2-methylbutane |
| B. | 2-bromo-2-methylbutane |
| C. | 2-bromo-3-methylbutane |
| D. | 1-bromo-3-methylbutane |
| Answer» B. 2-bromo-2-methylbutane | |
| 109. |
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is………….. |
| A. | n-hexane |
| B. | 2, 3-dimethylbutane |
| C. | 2, 2-dimethylbutane |
| D. | 2-methylpentane |
| Answer» B. 2, 3-dimethylbutane | |
| 110. |
Which group is present on alcohol. |
| A. | OH |
| B. | C=O |
| C. | CHO |
| D. | NO2 |
| Answer» A. OH | |
| 111. |
Which suffix attached in alcohol. |
| A. | En |
| B. | Ol |
| C. | Ene |
| D. | Hyde |
| Answer» B. Ol | |
| 112. |
Butane-2-ol is ……. |
| A. | Primary alcohol |
| B. | Secondary alcohol |
| C. | Tertiary alcohol |
| D. | Aldehyde |
| Answer» B. Secondary alcohol | |
| 113. |
Pentanol is a…….. |
| A. | Primary alcohol |
| B. | Secondary alcohol |
| C. | Tertiary alcohol |
| D. | None of these |
| Answer» C. Tertiary alcohol | |
| 114. |
Glycerol is a…… |
| A. | Primary alcohol |
| B. | Monohydric alcohol |
| C. | Secondary alcohol |
| D. | Trihydric alcohol |
| Answer» D. Trihydric alcohol | |
| 115. |
Which is primary alcohol……. |
| A. | Butane-2-ol |
| B. | Butane-1-ol |
| C. | Propane-2-ol |
| D. | Isopropyl alcohol |
| Answer» B. Butane-1-ol | |
| 116. |
General formula of primary alcohol is ……. |
| A. | CHOH |
| B. | COH |
| C. | CH2OH |
| D. | COHOH |
| Answer» C. CH2OH | |
| 117. |
The characteristic grouping of secondary alcohols is……. |
| A. | CHOH |
| B. | COH |
| C. | CH2OH |
| D. | COHOH |
| Answer» A. CHOH | |
| 118. |
Which of the following are isomers……. |
| A. | Methyl alcohol and dimethyl ether |
| B. | Ethyl alcohol and dimethyl ether |
| C. | Acetone and acetaldehyde |
| D. | Propionic acid and propanone |
| Answer» B. Ethyl alcohol and dimethyl ether | |
| 119. |
The compound HOH2C - CH2OH is……. |
| A. | Ethane glycol |
| B. | Ethylene glycol |
| C. | Ethylidene alcohol |
| D. | Dimethyl alcohol |
| Answer» B. Ethylene glycol | |
| 120. |
Methylated spirit is…….. |
| A. | Methanol |
| B. | Methanol + ethanol |
| C. | Methanoic acid |
| D. | Methanamide |
| Answer» B. Methanol + ethanol | |
| 121. |
Absolute alcohol is……. |
| A. | 100% pure ethanol |
| B. | 95% alcohol + 5% H2O |
| C. | Ethanol + water + phenol |
| D. | 95% ethanol + 5% methanol. |
| Answer» A. 100% pure ethanol | |
| 122. |
Which of the following is dihydric alcohol ……. |
| A. | Glycerol |
| B. | Ethylene glycol |
| C. | Catechol |
| D. | Resorcinol |
| Answer» B. Ethylene glycol | |
| 123. |
Wood spirit is known as ……… |
| A. | Methanol |
| B. | Ethanol |
| C. | Acetone |
| D. | Benzene |
| Answer» A. Methanol | |
| 124. |
Which one of the following will produce a primary alcohol by reacting with CH3MgI…….. |
| A. | Acetone |
| B. | Methyl cyanide |
| C. | Ethylene oxide |
| D. | Ethyl acetate |
| Answer» C. Ethylene oxide | |
| 125. |
The fermentation of starch to give alcohol occurs mainly with the help of ……… |
| A. | O2 |
| B. | Air |
| C. | CO2 |
| D. | Enzymes |
| Answer» D. Enzymes | |
| 126. |
Ethanol is prepared industrially by……… |
| A. | Hydration of ethylene |
| B. | Fermentation of sugars |
| C. | Both the above |
| D. | None of these |
| Answer» C. Both the above | |
| 127. |
Ethyl alcohol is industrially prepared from ethylene by…….. |
| A. | Permanganate oxidation |
| B. | Catalytic reduction |
| C. | Absorbing in H2SO4 followed by hydrolysis |
| D. | Fermentation |
| Answer» C. Absorbing in H2SO4 followed by hydrolysis | |
| 128. |
Coconut oil upon alkaline hydrolysis gives……. |
| A. | Glycol |
| B. | Alcohol |
| C. | Glycerol |
| D. | Ethylene oxide |
| Answer» C. Glycerol | |
| 129. |
Which enzyme converts glucose and fructose both into ethanol…….. |
| A. | Diastase |
| B. | Invertase |
| C. | Zymase |
| D. | Maltase |
| Answer» C. Zymase | |
| 130. |
Primary alcohols can be obtained from the reaction of the RMgX…… |
| A. | CO2 |
| B. | HCHO |
| C. | CH3 CHO |
| D. | H2O |
| Answer» B. HCHO | |
| 131. |
Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives ….. |
| A. | Isopropyl alcohol |
| B. | Ethyl alcohol |
| C. | Methyl alcohol |
| D. | Propyl alcohol |
| Answer» B. Ethyl alcohol | |
| 132. |
Benzyl alcohol is obtained from benzaldehyde by….. |
| A. | Fittig's reaction |
| B. | Cannizaro's reaction |
| C. | Kolbe's reaction |
| D. | Wurtz's reaction |
| Answer» B. Cannizaro's reaction | |
| 133. |
The product of reduction of benzaldehyde is ….. |
| A. | Benzoic acid |
| B. | Benzyl alcohol |
| C. | Benzene |
| D. | Catechol |
| Answer» B. Benzyl alcohol | |
| 134. |
Alkenes convert into alcohols by…… |
| A. | Hydrolysis by dil. Sulphuric acid |
| B. | Hydration of alkene by alkaline KMnO4 |
| C. | Hydrolysis by water vapours and conc. Sulphuric acid |
| D. | Hydration of alkene by aqueous KOH |
| Answer» B. Hydration of alkene by alkaline KMnO4 | |
| 135. |
Acetic acid and CH3 are obtained on large scale by destructive distillation of….. |
| A. | Wood |
| B. | Coal |
| C. | Turpentine |
| D. | Crude oil |
| Answer» A. Wood | |
| 136. |
Acid catalyzed hydration of alkenes except ethene leads to the formation of …… |
| A. | Primary alcohol |
| B. | Secondary or tertiary alcohol |
| C. | Mixture of primary and secondary alcohols |
| D. | Mixture of secondary and tertiary alcohols |
| Answer» B. Secondary or tertiary alcohol | |
| 137. |
The boiling point of alcohol are …. than corresponding thiols. |
| A. | More |
| B. | Same |
| C. | Either of these |
| D. | Less |
| Answer» A. More | |
| 138. |
Methyl alcohol can be distinguished from ethyl alcohol using …… |
| A. | Fehling solution |
| B. | Schiff's reagent |
| C. | Sodium hydroxide and iodine |
| D. | Phthalein fusion test |
| Answer» C. Sodium hydroxide and iodine | |
| 139. |
A compound X with molecular formula C3H8O can be oxidised to a compound Y with the molecular formula C3H6O2 X is most likely to be ….. |
| A. | Primary alcohol |
| B. | Secondary alcohol |
| C. | Aldehyde |
| D. | Ketone |
| Answer» A. Primary alcohol | |
| 140. |
On heating glycerol with conc. H2SO4 a compound is obtained which has a bad odour. The compound is….. |
| A. | Glycerol sulphate |
| B. | Acrolein |
| C. | Formic acid |
| D. | Allyl alcohol |
| Answer» B. Acrolein | |
| 141. |
Isopropyl alcohol on oxidation forms…… |
| A. | Acetone |
| B. | Ether |
| C. | Ethylene |
| D. | Acetaldehyde |
| Answer» A. Acetone | |
| 142. |
. The alcohol that produces turbidity immediately with ZnCl2 + conc. HCl at room temperature….. |
| A. | 1-hydroxybutane |
| B. | 2-hydroxybutane |
| C. | 2-hydroxy-2-methylpropane |
| D. | 1-hydroxy-2-methylpropane |
| Answer» C. 2-hydroxy-2-methylpropane | |
| 143. |
The reagent which easily reacts with ethanol and propanol is…… |
| A. | Fehling solution |
| B. | Grignard reagent |
| C. | Schiff's reagent |
| D. | Tollen's reagent |
| Answer» B. Grignard reagent | |
| 144. |
Propene is the product obtained by dehydrogenation of ……. |
| A. | 2-propanol |
| B. | 1-propanol |
| C. | Propanal |
| D. | n -propyl alcohol |
| Answer» A. 2-propanol | |
| 145. |
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 |
| Answer» B. Phenol is more acidic than ethyl alcohol | |
| 146. |
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 |
| Answer» A. Intermolecular hydrogen bonding | |
| 147. |
. The reaction of C2H5OH with H2SO4 does not give …… |
| A. | Ethylene |
| B. | Diethyl ether |
| C. | Acetylene |
| D. | Ethyl hydrogen sulphate |
| Answer» C. Acetylene | |
| 148. |
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 |
| Answer» C. Primary | |
| 149. |
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 |
| Answer» D. Pri < Sec < Ter | |
| 150. |
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 |
| Answer» A. Chlorine | |
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