MCQOPTIONS
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MCQOPTIONS
This section includes 437 Mcqs, each offering curated multiple-choice questions to sharpen your GENERAL SCIENCE knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which method of water purification does not kill microorganism? |
| A. | Boiling |
| B. | Filtration |
| C. | Chlorination |
| D. | Uv-irradiation |
| Answer» C. Chlorination | |
| 102. |
Which of the following are the two main constituents of granite? |
| A. | Iron and silica |
| B. | Iron and silver |
| C. | Silica and aluminium |
| D. | Iron oxide and potassium |
| Answer» B. Iron and silver | |
| 103. |
The pure form of carbon is - |
| A. | Graphite |
| B. | Charcoal |
| C. | Diamond |
| D. | Fullerence |
| Answer» E. | |
| 104. |
Nitric oxide pollution can lead to all of the following, except - |
| A. | Silicosis in human |
| B. | Leaf spotting in plants |
| C. | Bronchitis-related respiratory problems in human |
| D. | Production of corrosive gases through photochemical reaction |
| Answer» B. Leaf spotting in plants | |
| 105. |
Which of the following is the most dangerous pollutant? |
| A. | Nitrous oxide |
| B. | Carbon dioxide |
| C. | Sulphur dioxide |
| D. | Carbon monoxide |
| Answer» E. | |
| 106. |
Which of the following structures of a plant is responsible for transpiration? |
| A. | Root |
| B. | Bark |
| C. | Xylem |
| D. | Stomata |
| Answer» E. | |
| 107. |
Sodium stearate is a salt and is used |
| A. | In paint |
| B. | In gunpowder |
| C. | To make soap |
| D. | To make fertilizer |
| Answer» D. To make fertilizer | |
| 108. |
The complete digestion of carbohydrates, proteins and fats occurs in |
| A. | Liver |
| B. | Stomach |
| C. | Small intestine |
| D. | Large intestine |
| Answer» D. Large intestine | |
| 109. |
Two strands of DNA are held together by - |
| A. | Covalent bonds |
| B. | Hydrogen bonds |
| C. | Electrostatic force |
| D. | Van der waals' forces |
| Answer» C. Electrostatic force | |
| 110. |
Among the following animals, choose the one having three pairs of legs |
| A. | Bug |
| B. | Mite |
| C. | Spider |
| D. | Scorpion |
| Answer» B. Mite | |
| 111. |
From which of the following endocrine glands is GTH secreted? |
| A. | Adrenal gland |
| B. | Pituitary gland |
| C. | Thyroid gland |
| D. | Islets of langerhans in pancreas |
| Answer» C. Thyroid gland | |
| 112. |
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called: |
| A. | A molecule |
| B. | A cation |
| C. | An anion |
| D. | An atom |
| Answer» B. A cation | |
| 113. |
Chocolates can be bad for health because of a high content of - |
| A. | Zinc |
| B. | Nickel |
| C. | Lead |
| D. | Cobalt |
| Answer» C. Lead | |
| 114. |
AIDS is caused by: |
| A. | Bacteria |
| B. | Fungus |
| C. | Helminth |
| D. | Virus |
| Answer» E. | |
| 115. |
Epoxy resins are used as: |
| A. | Detergents |
| B. | Insecticides |
| C. | Adhesives |
| D. | Moth repellents |
| Answer» D. Moth repellents | |
| 116. |
Most soluble in water is: |
| A. | Camphor |
| B. | Sulphur |
| C. | Common salt |
| D. | Sugar |
| Answer» E. | |
| 117. |
Which of the following rays are the most penetrating? |
| A. | Beta rays |
| B. | Alpha rays |
| C. | Gamma rays |
| D. | X-rays |
| Answer» D. X-rays | |
| 118. |
Atoms are composed of: |
| A. | Electrons and protons |
| B. | Electrons only |
| C. | Protons only |
| D. | Electrons and nuclei |
| Answer» E. | |
| 119. |
Nuclear fission is caused by the impact of: |
| A. | Neutron |
| B. | Proton |
| C. | Deuteron |
| D. | Electron |
| Answer» B. Proton | |
| 120. |
What cause a moving body to resist a change in its state of motion? |
| A. | Displacement |
| B. | Acceleration |
| C. | Inertia |
| D. | Velocity |
| Answer» D. Velocity | |
| 121. |
Chemical formula for water is |
| A. | Naa1o2 |
| B. | H2o |
| C. | Al2o3 |
| D. | Casio3 |
| Answer» C. Al2o3 | |
| 122. |
Glass is made of the mixture of: |
| A. | Quartz and mica |
| B. | Sand and silicates |
| C. | Salt and quartz |
| D. | Sand and salt |
| Answer» C. Salt and quartz | |
| 123. |
Electric current is measure by: |
| A. | Commutator |
| B. | Anemometer |
| C. | Ammeter |
| D. | Voltmeter |
| Answer» D. Voltmeter | |
| 124. |
Permanent hardness of water may be removed by the addition of: |
| A. | Sodium carbonate |
| B. | Alum |
| C. | Potassium permanganate |
| D. | Lime |
| Answer» B. Alum | |
| 125. |
The variety of coal in which the deposit contains recognizable traces of the original plant material is |
| A. | Bitumen |
| B. | Anthracite |
| C. | Lignite |
| D. | Peat |
| Answer» E. | |
| 126. |
The group of metals Fe, Co, Ni may best called as: |
| A. | Transition metals |
| B. | Main group metals |
| C. | Alkali metals |
| D. | Rare metals |
| Answer» B. Main group metals | |
| 127. |
The tree sends down roots from its branches to the soil is know as: |
| A. | Oak |
| B. | Pine |
| C. | Banyan |
| D. | Palm |
| Answer» D. Palm | |
| 128. |
Heavy water is: |
| A. | Deuterium oxide |
| B. | Ph7 |
| C. | Rain water |
| D. | Tritium oxide |
| Answer» B. Ph7 | |
| 129. |
LPG consists of mainly: |
| A. | Methane, ethane and hexane |
| B. | Ethane, hexane and nonane |
| C. | Methane, hexane and nonane |
| D. | Methane, butane and propane |
| Answer» E. | |
| 130. |
The most important ore of aluminum is |
| A. | Galena |
| B. | Calamine |
| C. | Calcite |
| D. | Bauxite |
| Answer» E. | |
| 131. |
Optic fibers are mainly used for which of the following? |
| A. | Musical instruments |
| B. | Food industry |
| C. | Weaving |
| D. | Communication |
| Answer» E. | |
| 132. |
One kilometer is equal to how many miles? |
| A. | 0.84 |
| B. | 0.5 |
| C. | 1.6 |
| D. | 0.62 |
| Answer» E. | |
| 133. |
Among the various allotrope of carbon |
| A. | Coke is the hardest, graphite is the softest |
| B. | Diamond is the hardest, coke is the softest |
| C. | Diamond is the hardest, graphite is the softest |
| D. | Diamond is the hardest, lamp black is the softest |
| Answer» C. Diamond is the hardest, graphite is the softest | |
| 134. |
The age of most ancient geological formations is estimated by |
| A. | Ra - si method |
| B. | Potassium - argon method |
| C. | C14 method |
| D. | Uranium - lead method |
| Answer» D. Uranium - lead method | |
| 135. |
Rayon is chemically. |
| A. | Cellulose |
| B. | Pectin |
| C. | Glucose |
| D. | Amylase |
| Answer» B. Pectin | |
| 136. |
Air is a/an: |
| A. | Compound |
| B. | Element |
| C. | Electrolyte |
| D. | Mixture |
| Answer» E. | |
| 137. |
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of: |
| A. | Bromine |
| B. | Fluorine |
| C. | Chlorine |
| D. | Sulphur |
| Answer» E. | |
| 138. |
Amalgams are: |
| A. | Highly coloured alloys |
| B. | Alloys which contain mercury as one of the contents |
| C. | Alloys which have great resistance to abrasion |
| D. | Alloys which contain carbon |
| Answer» C. Alloys which have great resistance to abrasion | |
| 139. |
Water is a good solvent of ionic salts because: |
| A. | It has a high specific heat |
| B. | It has no colour |
| C. | It has a high dipole moment |
| D. | It has a high boiling point |
| Answer» D. It has a high boiling point | |
| 140. |
Carbon, diamond and graphite are together called: |
| A. | Allotrope |
| B. | Isomers |
| C. | Isomorphs |
| D. | Isotopes |
| Answer» B. Isomers | |
| 141. |
Permanent hardness of water can be removed by adding: |
| A. | Chlorine |
| B. | Washing soda |
| C. | Potassium permanganate |
| D. | Bleaching powder |
| Answer» C. Potassium permanganate | |
| 142. |
Which is the absolute temperature scale? |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Kelvin |
| D. | All of these |
| Answer» D. All of these | |
| 143. |
The major ingredient of leather is: |
| A. | Collagen |
| B. | Carbohydrate |
| C. | Polymer |
| D. | Nucleic acid |
| Answer» B. Carbohydrate | |
| 144. |
BACK TO VILLAGES slogan was given by: |
| A. | Lenin |
| B. | Mao |
| C. | Nehru |
| D. | Patel |
| Answer» C. Nehru | |
| 145. |
In an atomic nucleus, neutrons and protons are held together by: |
| A. | Gravitational forces |
| B. | Exchange forces |
| C. | Coulombic forces |
| D. | Magnetic forces |
| Answer» C. Coulombic forces | |
| 146. |
Which of the following is commonly called a 'poly-amide'? |
| A. | Terylene |
| B. | Nylon |
| C. | Rayon |
| D. | Orlon |
| Answer» C. Rayon | |
| 147. |
Which layer protects earth from harmful rays of the Sun? |
| A. | Ionosphere |
| B. | Ozone layer |
| C. | Troposphere |
| D. | Magnetosphere |
| Answer» C. Troposphere | |
| 148. |
Newton is the unit of: |
| A. | Force |
| B. | Momentum |
| C. | Acceleration due to gravity |
| D. | Velocity |
| Answer» B. Momentum | |
| 149. |
Sodium metal is kept under: |
| A. | Petrol |
| B. | Alcohol |
| C. | Water |
| D. | Kerosene |
| Answer» E. | |
| 150. |
Which of the following schemes is launched for the school going children: |
| A. | Lok jumbish |
| B. | Mid day meal |
| C. | Sarva shiksha abhiyan |
| D. | Ayush |
| Answer» C. Sarva shiksha abhiyan | |