MCQOPTIONS
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MCQOPTIONS
This section includes 252 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Isomerism exhibeted by acetic acid and methyl formate is |
| A. | Functional group |
| B. | Chain |
| C. | Position |
| D. | Geometrical |
| Answer» B. Chain | |
| 102. |
Which type of isomerism is shown by diethyl ether and methyl propyl ether |
| A. | Chain |
| B. | Functional |
| C. | Metamerism |
| D. | Position |
| Answer» D. Position | |
| 103. |
The shape of acetylene molecule is |
| A. | Linear |
| B. | Planar |
| C. | Pyramidal |
| D. | Terahedral |
| Answer» B. Planar | |
| 104. |
Bond length is shortest in |
| A. | Methane |
| B. | Acetylene |
| C. | Ethylene |
| D. | Ethane |
| Answer» D. Ethane | |
| 105. |
Optical isomerism is exhibited by the compound which cantains |
| A. | At least one double bond |
| B. | At least one triple bond |
| C. | At least one symmetric carbon atom |
| D. | At least one polar group |
| Answer» D. At least one polar group | |
| 106. |
Optical isomerism is shown by |
| A. | Oxalic acid |
| B. | Benzoic acid |
| C. | Acetic acid |
| D. | Lactic acid |
| Answer» E. | |
| 107. |
Petroleum consists of |
| A. | Aliphatic hydrocarbons |
| B. | Aliphatic alcohols |
| C. | Aromatic derivatives |
| D. | None of these |
| Answer» B. Aliphatic alcohols | |
| 108. |
The fraction obtained between temperature 50-300 |
| A. | Paraffin wax |
| B. | Heavy oil |
| C. | Kerosene |
| D. | Naphtha |
| Answer» D. Naphtha | |
| 109. |
Schiff's reagent is |
| A. | Magenta solution decolourised with sulphorous acid |
| B. | Magenta solution decolourised with chlorine |
| C. | Ammoniacal cobalt chloride solution |
| D. | Ammonical manganese sulphate solution |
| Answer» B. Magenta solution decolourised with chlorine | |
| 110. |
End of detergent have |
| A. | Ester group |
| B. | Aldehyde |
| C. | Amine group |
| D. | Sodium sulphate |
| Answer» E. | |
| 111. |
Soaps can be classified as |
| A. | Carbohydrates |
| B. | Ethers |
| C. | Salt of fatty acids |
| D. | None of these |
| Answer» D. None of these | |
| 112. |
Tollen's reagent is |
| A. | Alkaline mercuric chloride |
| B. | Alkaline potassium permanganate |
| C. | Ammoniacal silver nitrate |
| D. | Ammonium citrate |
| Answer» D. Ammonium citrate | |
| 113. |
Sodium acetamide smell like |
| A. | Garlic |
| B. | Rotten egg |
| C. | Pleasant |
| D. | Reminiscent of mice |
| Answer» E. | |
| 114. |
Which one of the following allotropes of the carbon is used in cutting and drilling |
| A. | Diamond |
| B. | Graphite |
| C. | Activated charcoal |
| D. | Carbon black |
| Answer» B. Graphite | |
| 115. |
Wood spirit is known as |
| A. | Ethanol |
| B. | Methanol |
| C. | Acetone |
| D. | Benzene |
| Answer» C. Acetone | |
| 116. |
Formaline is the commercial name of |
| A. | Formic acid |
| B. | Fluoroform |
| C. | 40% aqueous solution of methanal |
| D. | Paraformaldehyde |
| Answer» D. Paraformaldehyde | |
| 117. |
Adipic acid is a |
| A. | Dibasic acid |
| B. | Tribasic acid |
| C. | Monobasic acid |
| D. | Tetrabasic acid |
| Answer» B. Tribasic acid | |
| 118. |
Hexachloroethane is also known as |
| A. | DDT |
| B. | Artificial Comphor |
| C. | TNT |
| D. | None of these |
| Answer» C. TNT | |
| 119. |
Lactic acid is |
| A. | Propionic acid |
| B. | - hydroxy propionic acid |
| C. | - hydroxy propionic acid |
| D. | None of the above |
| Answer» C. - hydroxy propionic acid | |
| 120. |
Most of the hydrocarbons from petroleum are obtained by |
| A. | Pyrolysis |
| B. | Fractional crystallisation |
| C. | Cracking |
| D. | Fractional distillation |
| Answer» E. | |
| 121. |
A mixture of camphor and benzoic acid can be easily separated by |
| A. | Sublimation |
| B. | Fractional distillation |
| C. | Chemical method |
| D. | Extraction with solvents |
| Answer» D. Extraction with solvents | |
| 122. |
In organic compound, halogens are estimated by |
| A. | Carius method |
| B. | Liebig's method |
| C. | Kjeldahl's method |
| D. | Duma's method |
| Answer» B. Liebig's method | |
| 123. |
Which one is not an organic compound ? |
| A. | Ammonium cyanate |
| B. | Marsh gas |
| C. | Urea |
| D. | Cane sugar |
| Answer» B. Marsh gas | |
| 124. |
Schiff's method piria method is used for the estimation of |
| A. | Nitrogen |
| B. | sulphur |
| C. | Halogens |
| D. | Oxygen |
| Answer» D. Oxygen | |
| 125. |
Essential constituent of all organic compound is |
| A. | Nitrogen |
| B. | Sulphur |
| C. | Carbon |
| D. | Hydrogen |
| Answer» D. Hydrogen | |
| 126. |
Which one of the following is the heterocyclic compound ? |
| A. | Pyrene |
| B. | Thiophene |
| C. | Phenol |
| D. | Aniline |
| Answer» C. Phenol | |
| 127. |
Latest technique for purification, isolation and separation of organic compounds is |
| A. | Chromatography |
| B. | Steam distillation |
| C. | Crystallisation |
| D. | Vacuum distillation |
| Answer» B. Steam distillation | |
| 128. |
Knocking sound is produced in the engine when the fuel contains |
| A. | Water |
| B. | Lubricating oil |
| C. | Straight-chained hydrocarbon |
| D. | Iso-carbon atoms |
| Answer» D. Iso-carbon atoms | |
| 129. |
Ethanol containing some methanol is called |
| A. | Methylated spirit |
| B. | Rectified spirit |
| C. | Absolute spirit |
| D. | None of these |
| Answer» B. Rectified spirit | |
| 130. |
The reaction between acid an alcohol is known as |
| A. | Esterification |
| B. | Saponification |
| C. | Hydrolysis |
| D. | Hydrogenation |
| Answer» B. Saponification | |
| 131. |
The revers of esterification process is called |
| A. | Neutralisation |
| B. | Hydrolysis |
| C. | Acidolysis |
| D. | Alcoholysis |
| Answer» B. Hydrolysis | |
| 132. |
The percentage of nitrogen in urea is |
| A. | 46 |
| B. | 23 |
| C. | 48 |
| D. | 52 |
| Answer» B. 23 | |
| 133. |
Saturated hydrocarbons undergo |
| A. | Substitution reaction |
| B. | Addition reactions |
| C. | Polymerisation reactions |
| D. | Condensation reactions |
| Answer» B. Addition reactions | |
| 134. |
The derivatives not found in nature are |
| A. | Alkanes |
| B. | Carbohydrates |
| C. | Fats |
| D. | Alkyl halides |
| Answer» E. | |
| 135. |
Which of the following is an active component of oil of clove ? |
| A. | Menthol |
| B. | Eugenol |
| C. | Methanol |
| D. | Benzaldehyde |
| Answer» C. Methanol | |
| 136. |
Reforming is the process used for |
| A. | Preparation of hydrocarbon |
| B. | Increasing the octane number |
| C. | Preparation of straight chain |
| D. | Preparation of aromatic heterocyclic compounds |
| Answer» C. Preparation of straight chain | |
| 137. |
The most satisfactory method for separating sugars is |
| A. | Fractional distillation |
| B. | Vacuum distillation |
| C. | Chromatography |
| D. | Steam distillation |
| Answer» D. Steam distillation | |
| 138. |
Aniline is separated from a mixture by |
| A. | Fractional crystallisation |
| B. | Fractional distillation |
| C. | Vacuum distillation |
| D. | Steam distillation |
| Answer» E. | |
| 139. |
Acetone on condensation with chloroform is presence of caustic potash forms |
| A. | Chloretone |
| B. | Trichloro nitromethane |
| C. | 1, 1, 1 - trichloro - 2 methyl propan - 2 - ol |
| D. | Chloropicrin |
| Answer» B. Trichloro nitromethane | |
| 140. |
Methanol and acetone can be separated by |
| A. | Fractional distillation |
| B. | Distillation |
| C. | Steam distillation |
| D. | Vacuum distillation |
| Answer» B. Distillation | |
| 141. |
Tamarind contains |
| A. | Tartaric acids |
| B. | Lactic acid |
| C. | Citric acids |
| D. | Succinic acid |
| Answer» B. Lactic acid | |
| 142. |
Which is a tribasic acid |
| A. | Succinic acid |
| B. | Tartaric acid |
| C. | Citric acid |
| D. | Valeric acid |
| Answer» D. Valeric acid | |
| 143. |
Which of the following is not a petrolium product ? |
| A. | Petrol |
| B. | Kerosene |
| C. | Bees wax |
| D. | None of these |
| Answer» D. None of these | |
| 144. |
Which of the following acids is present in vinegar ? |
| A. | Hydrochloric acid |
| B. | Acetic acid |
| C. | Tartaric acid |
| D. | Citric acid |
| Answer» C. Tartaric acid | |
| 145. |
The IUPAC name of carproic acid is |
| A. | Pentanoic acid |
| B. | Hexonoic acid |
| C. | Heptanoic acid |
| D. | Octanoic acid |
| Answer» C. Heptanoic acid | |
| 146. |
Anthracene is purified by |
| A. | Filtration |
| B. | Distillation |
| C. | Crystallisation |
| D. | Sublimation |
| Answer» E. | |
| 147. |
The offending substance in the liquor tragedies leading to blindness etc. is |
| A. | Ethyl alcohol |
| B. | Amyl alcohol |
| C. | Benzyl alcohol |
| D. | Methyl alcohol |
| Answer» E. | |
| 148. |
Silica get is used for keeping away the moisture |
| A. | Adsorbs water molecule |
| B. | Absorbs water molecule |
| C. | Reacts with water |
| D. | None of these |
| Answer» B. Absorbs water molecule | |
| 149. |
Purification of petroleum is carried out by the following method |
| A. | Fractional distillation |
| B. | Steam distillation |
| C. | Vacuum distillation |
| D. | Simple distillation |
| Answer» B. Steam distillation | |
| 150. |
Paraffin wax is |
| A. | Ester |
| B. | Alcohol |
| C. | Unsaturated hydroccarbons |
| D. | Saturated hydrocarbons |
| Answer» E. | |