McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) , Staff Selection Commission (SSC) .
Chapters
| 101. |
The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called? |
| A. | Stone bed method |
| B. | biofilter method |
| C. | aerobic filtration |
| D. | anerobic filtration |
| Answer» B. biofilter method | |
| 102. |
As per Avogadro‘s hypothesis , equal volumes of different gases at the same temperature and pressure contain equal number of ______? |
| A. | Atoms |
| B. | Molecules |
| C. | Particles |
| D. | Electrons |
| Answer» B. Molecules | |
| 103. |
Duralumin which is used in making aero planes is an alloy consisting of _____? |
| A. | Aluminum & Copper |
| B. | Aluminum, Copper & Manganese |
| C. | Aluminum, Copper, Manganese & Magnesium |
| D. | Aluminum and zinc |
| Answer» C. Aluminum, Copper, Manganese & Magnesium | |
| 104. |
Which among the following was the first artificially produced element? |
| A. | Neptunium |
| B. | Ununbium |
| C. | Technetium |
| D. | none of the above |
| Answer» C. Technetium | |
| 105. |
Froth & Foams are examples of which of the following ? |
| A. | solid suspended in gas |
| B. | liquid suspended in gas |
| C. | gas suspended in liquid |
| D. | gas suspended in solid |
| Answer» C. gas suspended in liquid | |
| 106. |
Which among the following is most electronegative element? |
| A. | Chlorine |
| B. | FLourine |
| C. | Bromine |
| D. | All of them have same electronegativity |
| Answer» B. FLourine | |
| 107. |
What is the main use of Bisphenol A drug ? |
| A. | A drug which was used by sports persons for doping |
| B. | A chemical compound which is used in plastics used for food packaging |
| C. | An alloy which is used in cans of cola drinks |
| D. | None of the above |
| Answer» B. A chemical compound which is used in plastics used for food packaging | |
| 108. |
Which among the following is not a constituent of gobar gas? |
| A. | Methane |
| B. | Propane |
| C. | Carbondioxide |
| D. | All are constiuents of Gobar gas |
| Answer» B. Propane | |
| 109. |
Which among the following is incorrect regarding the chemical nature of Diamond & Graphite? |
| A. | Density of Diamond is higher than that of Graphite |
| B. | Diamond is chemically unreactive while graphite is mild reactive |
| C. | Both Diamond and Graphite are good conductors of electricity |
| D. | None of the above |
| Answer» C. Both Diamond and Graphite are good conductors of electricity | |
| 110. |
Galvanizing is a metallurgical process that is used to coat steel or iron with which of the following? |
| A. | Zinc |
| B. | Lead |
| C. | Chromium |
| D. | Copper |
| Answer» A. Zinc | |
| 111. |
Which among the following is Quick Silver? |
| A. | Aluminium |
| B. | Mercury |
| C. | Lead |
| D. | Zinc |
| Answer» B. Mercury | |
| 112. |
The primary part of Liquefied Petroleum Gas LPG is ______? |
| A. | Butance |
| B. | Methane |
| C. | Propane |
| D. | Ethane |
| Answer» C. Propane | |
| 113. |
Which among the following explains the radiation emitted by black bodies? |
| A. | Big-bang theory |
| B. | Quantum Theory |
| C. | Piezoelectric Effect |
| D. | None of the above |
| Answer» B. Quantum Theory | |
| 114. |
Calamine lotion which is used as an antipruritic (anti-itching agent) to treat mild pruritic conditions contains which of the following? |
| A. | Zinc |
| B. | Calcium |
| C. | Magnesium |
| D. | Sodium |
| Answer» A. Zinc | |
| 115. |
In which of the following Mercury is a constituent? |
| A. | Cinnabar |
| B. | Chile saltpeter |
| C. | Calamine |
| D. | Gold |
| Answer» A. Cinnabar | |
| 116. |
Adsorption is used commonly in which of the following processes? |
| A. | Purification of solids |
| B. | Purification of liquids |
| C. | Making scrubbers |
| D. | Chromatography |
| Answer» D. Chromatography | |
| 117. |
Which among the following is a correct definition of Cyclotron? |
| A. | Accelerator of charged atomic particles |
| B. | Device for detection of High Energy atomic radiation |
| C. | Device for storing electric charge |
| D. | Device for storing heat |
| Answer» A. Accelerator of charged atomic particles | |
| 118. |
The Chemical formula of Graphite is _________? |
| A. | C |
| B. | C2 |
| C. | C4 |
| D. | C6 |
| Answer» A. C | |
| 119. |
Which among the following is true about solubility of ―Lipids‖? |
| A. | They are soluble in water but insoluble in organic solvents |
| B. | They are insoluble in water but soluble in organic solvents |
| C. | They are soluble in water as well as organic solvents |
| D. | They are insoluble in water as well as organic solvents |
| Answer» B. They are insoluble in water but soluble in organic solvents | |
| 120. |
Calcium Magnesium Silicate is commonly called as ________? |
| A. | Asbestos |
| B. | Borax |
| C. | Baking Soda |
| D. | Washing Soda |
| Answer» A. Asbestos | |
| 121. |
Phenolphthalein is used in chemistry as a ______? |
| A. | Solvent |
| B. | Dye |
| C. | Catalyst |
| D. | Detergent |
| Answer» B. Dye | |
| 122. |
Reserpine is an example of which kind of drug? |
| A. | Narcotic |
| B. | Anti-histamine |
| C. | Tranquillizer |
| D. | None |
| Answer» C. Tranquillizer | |
| 123. |
Cobalt oxide is used to impart which color to glass? |
| A. | Brown |
| B. | Blue |
| C. | Red |
| D. | Yellow |
| Answer» B. Blue | |
| 124. |
Which among the following is correct full form of DDT? |
| A. | Dichloro-diethyl-trifluoromethane |
| B. | Dichloro-diphenyl-trichloroethane |
| C. | Dichloro-diphenyl-trichloromethane |
| D. | Dipheneyl-dichloro-trichloromethane |
| Answer» B. Dichloro-diphenyl-trichloroethane | |
| 125. |
Which among the following sentences is true? |
| A. | Ammophos is an organic fertilizer while Urea is an inorganic fertilizer |
| B. | Ammophos is an inorganic fertilizer while Urea is an organic fertilizer |
| C. | Both of them are organic fertilizers |
| D. | Both of them are inorganic fertilizers |
| Answer» B. Ammophos is an inorganic fertilizer while Urea is an organic fertilizer | |
| 126. |
Rayon is an example of _______? |
| A. | a synthetic fiber |
| B. | a natural fiber |
| C. | semi-synthetic fiber |
| D. | Synthetic Detergent |
| Answer» C. semi-synthetic fiber | |
| 127. |
Sodium Alkyl Sulphate and Benzene Sulphate are examples of ________ |
| A. | Explosives |
| B. | Insecticides |
| C. | Fungicides |
| D. | Synthetic Detergents |
| Answer» D. Synthetic Detergents | |
| 128. |
Which of the following group characterizes alcohols? |
| A. | OH group |
| B. | COOH group |
| C. | COO group |
| D. | CO group |
| Answer» A. OH group | |
| 129. |
Which among the following is not a use of Graphite? |
| A. | making of electrodes |
| B. | lubricant |
| C. | manufacturing of crucibles, |
| D. | Glass cutting |
| Answer» D. Glass cutting | |
| 130. |
Water at 4 degree centigrade has____? |
| A. | minimum density |
| B. | maximum density |
| C. | No density |
| D. | None of the above |
| Answer» B. maximum density | |
| 131. |
To keep the hot glass item‘s finishing and transparency , they go through a process called annealing. This process involves _______? |
| A. | cooled rapidly |
| B. | cooled very slowly |
| C. | cooled slowly and uniformly under controlled environment |
| D. | heating rapidly |
| Answer» C. cooled slowly and uniformly under controlled environment | |
| 132. |
Bleaching Powder is a compound of _______? |
| A. | Calcium |
| B. | Sodium |
| C. | Magnesium |
| D. | Sulphur |
| Answer» A. Calcium | |
| 133. |
Graphite, Carbon and Diamonds are _________? |
| A. | Isotopes |
| B. | Isomers |
| C. | Isotones |
| D. | Allotropes |
| Answer» D. Allotropes | |
| 134. |
Galena & Litharge are ores of which of the following metals? |
| A. | Mercury |
| B. | Zinc |
| C. | Copper |
| D. | Lead |
| Answer» D. Lead | |
| 135. |
A molecule is a smallest part of matter which possesses all properties of original matter. A molecule is electrically _________? |
| A. | Positve |
| B. | Negative |
| C. | either positive or negative |
| D. | neutral |
| Answer» D. neutral | |
| 136. |
A neutron , an electron, a proton and an alpha particle are moving with the same kinetic energy. Which of the following is correct order of their speeds? |
| A. | Alpha Particle, Neutron, Proton, Electron |
| B. | Electron, Proton , Neutron, Alpha Particle |
| C. | Alpha Particle, Proton, Neutron, Electron |
| D. | Neutron, Proton, Alpha Particle, Electron |
| Answer» A. Alpha Particle, Neutron, Proton, Electron | |
| 137. |
Whenever an alkali metal such as Lithium or Sodium reacts with water , which among the following gas is produced? |
| A. | Oxygen |
| B. | Hydrogen |
| C. | Ozone |
| D. | Carbondioxide |
| Answer» B. Hydrogen | |
| 138. |
Which among the following are used as components to produce Nitrolim, a widely used fertilizer in past? |
| A. | Nitrogen & Limestone |
| B. | Calcium Carbide and Nitrogen |
| C. | Calcium Carbide & Carbon |
| D. | Calcium Carbide and Limestone |
| Answer» B. Calcium Carbide and Nitrogen | |
| 139. |
The aqueous solution of which among the following acids is called Vinegar? |
| A. | Oxalic acid |
| B. | Citric acid |
| C. | Acetic acid |
| D. | Hydrochloric acid |
| Answer» C. Acetic acid | |
| 140. |
Which among the following is the correct decreasing of bioelements in Human Body? |
| A. | oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus |
| B. | oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus |
| C. | oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus |
| D. | carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus |
| Answer» C. oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus | |
| 141. |
Which among the following happens in an oxidation reaction ? |
| A. | Electrons are gained |
| B. | Electrons are lost |
| C. | Protons are gained |
| D. | Protons are lost |
| Answer» B. Electrons are lost | |
| 142. |
Identify the thermosetting plastic from the given options: |
| A. | Polythene |
| B. | Bakelite |
| C. | PVC |
| D. | Casseine |
| Answer» B. Bakelite | |
| 143. |
White Phosphorous is represented by which among the following symbols? |
| A. | P1 |
| B. | P2 |
| C. | P3 |
| D. | P4 |
| Answer» D. P4 | |
| 144. |
Which among the following is called Laughing Gas popularly? |
| A. | Nitric oxide |
| B. | Nitrous oxide |
| C. | Nitrogen penta oxide |
| D. | Nitrogen |
| Answer» B. Nitrous oxide | |
| 145. |
Identify the non-metallic mineral from the given options: |
| A. | Manganese |
| B. | Magnesium |
| C. | Silica |
| D. | Bauxite |
| Answer» C. Silica | |
| 146. |
Which among the following are constituents of Brass? |
| A. | Zinc and Copper |
| B. | Iron and Zinc |
| C. | Copper and Nickel |
| D. | Iron and Copper |
| Answer» A. Zinc and Copper | |
| 147. |
Which among the following acids is abundant in Grapes, Bananas and Tamarind? |
| A. | Lactic Acid |
| B. | Oxalic Acid |
| C. | Salicylic Acid |
| D. | Tartaric Acid |
| Answer» D. Tartaric Acid | |
| 148. |
Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2- 3 December 1984? |
| A. | Methyl isocyanide |
| B. | Methyl isocyanate |
| C. | methyl isochloride |
| D. | methyl isochlorate |
| Answer» B. Methyl isocyanate | |
| 149. |
In the manufacture of Vanaspati ghee from vegetable oils, which among the following gas is used? |
| A. | N2 |
| B. | CO2 |
| C. | H2 |
| D. | Ne |
| Answer» C. H2 | |
| 150. |
When a tubelight breaks, a cracking sound is produced because ____? |
| A. | Pressure inside the lamp is less than atmospheric pressure |
| B. | Pressure inside the lamp is more than atmospheric pressure |
| C. | The lamp is filled with reactive gases |
| D. | The lamp is filled with mercury vapour |
| Answer» A. Pressure inside the lamp is less than atmospheric pressure | |
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