MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 268 Mcqs, each offering curated multiple-choice questions to sharpen your Banking And Financial Awareness knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
How many different isomers are possible for a hydrocarbon with the molecular formula \[{{C}_{4}}{{H}_{10}}\] |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 5 |
| Answer» C. 3 | |
| 102. |
Alkenes are characterized by |
| A. | C - C bonds |
| B. | \[C=C\] bonds |
| C. | \[C\equiv C\] bonds |
| D. | cyclic structure |
| Answer» C. \[C\equiv C\] bonds | |
| 103. |
Two adjacent members of a homologous series have: |
| A. | a difference of \[-C{{H}_{2}}\] in their structure |
| B. | a difference of 14 a.m.u. in molecular mass |
| C. | same general methods of preparation |
| D. | all of the above |
| Answer» E. | |
| 104. |
The branch of chemistry which deals with study of the methods of detection and determination of elements and compounds is |
| A. | Physical chemistry |
| B. | Nuclear chemistry |
| C. | Analytical chemistry |
| D. | Bio chemistry |
| Answer» D. Bio chemistry | |
| 105. |
The branch of chemistry which deals with study of physical properties and conditions is |
| A. | physical chemistry |
| B. | analytical chemistry |
| C. | nuclear chemistry |
| D. | pharmaceutical chemistry |
| Answer» B. analytical chemistry | |
| 106. |
Which of the following does not corrode when exposed to the atmosphere? |
| A. | Iron |
| B. | Copper |
| C. | Gold |
| D. | Silver |
| Answer» D. Silver | |
| 107. |
Rusting of an iron is an example of |
| A. | reduction |
| B. | ionization |
| C. | oxidation |
| D. | dissociation |
| Answer» D. dissociation | |
| 108. |
Which of the following is not an endothermic process? |
| A. | Boiling of water |
| B. | Dissolving salts in water |
| C. | Dissolving cone. \[{{H}_{2}}S{{O}_{4}}\] in water |
| D. | Evaporation of water |
| Answer» D. Evaporation of water | |
| 109. |
In the following equations : \[NaC{{O}_{3}}+xHCl\to 2NaCl+C{{O}_{2}}+{{H}_{2}}O\]the value x is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 110. |
Which of the following statement is not correct? To prevent food from getting rancid, we |
| A. | store the food in air-tight containers |
| B. | add antioxidants |
| C. | flush bags of chips with an inert gas |
| D. | increase the temperature of the food |
| Answer» E. | |
| 111. |
Which one of the following is not an exothermic reaction? |
| A. | Respiration |
| B. | Slaking of lime |
| C. | Burning of a candle |
| D. | Dipping of iron block in water |
| Answer» E. | |
| 112. |
An organic compound containing C, H and 0 gave on analysis C - 40% and H - 6.66%. Its empirical formula would be |
| A. | \[{{C}_{3}}{{H}_{6}}O\] |
| B. | CHO |
| C. | \[C{{H}_{2}}O\] |
| D. | \[C{{H}_{4}}O\] |
| Answer» D. \[C{{H}_{4}}O\] | |
| 113. |
The formula of sodium pyrophosphate is |
| A. | \[N{{a}_{2}}{{P}_{2}}{{O}_{7}}\] |
| B. | \[N{{a}_{3}}P{{O}_{4}}\] |
| C. | \[N{{a}_{4}}{{P}_{2}}{{O}_{7}}\] |
| D. | \[N{{a}_{3}}P{{O}_{3}}\] |
| Answer» D. \[N{{a}_{3}}P{{O}_{3}}\] | |
| 114. |
An organic compound containing C, H and N gave the following analysis: C = 40% ; H= 13.33%; N = 46.67% Its empirical formula would be |
| A. | \[{{C}_{2}}{{H}_{7}}{{N}_{2}}\] |
| B. | \[C{{H}_{5}}N\] |
| C. | \[C{{H}_{4}}N\] |
| D. | \[{{C}_{2}}{{H}_{7}}N\] |
| Answer» D. \[{{C}_{2}}{{H}_{7}}N\] | |
| 115. |
A redox reaction is one in which - |
| A. | both the substance are reduced |
| B. | both the substance are oxidized |
| C. | an acid is neutralised by the base |
| D. | one substance is oxidised while the other is reduced |
| Answer» E. | |
| 116. |
\[AgN{{O}_{3}}(aq)\to AgCl(s)+NaN{{O}_{3}}(aq)\]Above reaction is - |
| A. | precipitation reaction |
| B. | double displacement reaction |
| C. | combination reaction |
| D. | Both [a] and [b] |
| Answer» E. | |
| 117. |
The empirical formula of a compound is One mole of this compound has a mass of 42 grams. Its molecular formula is: |
| A. | \[{{C}_{3}}{{H}_{6}}\] |
| B. | \[{{C}_{3}}{{H}_{8}}\] |
| C. | \[C{{H}_{2}}\] |
| D. | \[{{C}_{2}}{{H}_{2}}\] |
| Answer» B. \[{{C}_{3}}{{H}_{8}}\] | |
| 118. |
The empirical formula and molecular mass of a compound are \[C{{H}_{2}}O\] and 180 g respectively what will be the molecular formula of the compound? |
| A. | \[{{C}_{9}}{{H}_{18}}{{O}_{9}}\] |
| B. | \[C{{H}_{2}}O\] |
| C. | \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] |
| D. | \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\] |
| Answer» D. \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\] | |
| 119. |
The chromate and dicharomate ions are respectively |
| A. | \[CrO_{4}^{{{2}^{-}}}\] and \[C{{r}_{2}}O_{7}^{2-}\] |
| B. | \[C{{r}_{2}}O_{7}^{2-}\] and \[CrO_{4}^{-}\] |
| C. | \[CrO_{4}^{-}\] and \[CrO_{5}^{-}\] |
| D. | \[CrO_{4}^{2-}\] and \[CrO_{5}^{2-}\] |
| Answer» B. \[C{{r}_{2}}O_{7}^{2-}\] and \[CrO_{4}^{-}\] | |
| 120. |
Which is not a balanced equation? |
| A. | \[NaOH+HCl\to NaCl+{{H}_{2}}O\] |
| B. | \[Mg+CuS{{O}_{4}}\to MgS{{O}_{4}}+Cu\] |
| C. | \[Fe+C{{l}_{2}}\to FeC{{l}_{3}}\] |
| D. | \[Mg+2HN{{O}_{3}}\to Mg{{(N{{O}_{3}})}_{2}}+{{H}_{2}}\] |
| Answer» D. \[Mg+2HN{{O}_{3}}\to Mg{{(N{{O}_{3}})}_{2}}+{{H}_{2}}\] | |
| 121. |
Chemical equations are balanced in accordance with the |
| A. | Dalton's law |
| B. | Law of conservation of mass |
| C. | Law of definite composition |
| D. | None of these |
| Answer» C. Law of definite composition | |
| 122. |
Which one is a decomposition reaction? |
| A. | \[2HgO\xrightarrow{heat}2Hg+{{O}_{2}}\] |
| B. | \[CaC{{O}_{3}}\xrightarrow{heat}CaO+C{{O}_{2}}\] |
| C. | \[2{{H}_{2}}O\xrightarrow{Electrolysis}2{{H}_{2}}+{{O}_{2}}\] |
| D. | All the above reactions are decomposition reaction |
| Answer» E. | |
| 123. |
Which one is a combination reaction? |
| A. | Formation of a mixture of carbon monoxide and hydrogen. When steam is passed over red hot iron. |
| B. | Reaction of water with sodium metal to form sodium hydroxide and hydrogen. |
| C. | \[Ca{{(OH)}_{2}}+N{{a}_{2}}C{{O}_{3}}\to 2NaOH+CaC{{O}_{3}}\downarrow \] |
| D. | Preparation of stannic chloride (Tin (iv) chloride) by passing chlorine gas into molten tin (Sn). |
| Answer» E. | |
| 124. |
Select the one that represents a displacement reaction. |
| A. | \[NaCl+AgN{{O}_{3}}\to AgCl+NaN{{O}_{3}}\] |
| B. | \[Zn+CuS{{O}_{4}}\to ZnS{{O}_{4}}+Cu\] |
| C. | \[HCl+NaOH\to NaCl+{{H}_{2}}O\] |
| D. | \[C+{{O}_{2}}\to C{{O}_{2}}\] |
| Answer» C. \[HCl+NaOH\to NaCl+{{H}_{2}}O\] | |
| 125. |
Chemical formula of Aluminium sulphate is |
| A. | \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\] |
| B. | \[AlS{{O}_{4}}\] |
| C. | \[A{{l}_{3}}{{(S{{O}_{4}})}_{2}}\] |
| D. | None of these |
| Answer» B. \[AlS{{O}_{4}}\] | |
| 126. |
Which one is a bivalent ion? |
| A. | sodium |
| B. | calcium |
| C. | sulphide |
| D. | Both [b] and [c] |
| Answer» C. sulphide | |
| 127. |
\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] represent the compound |
| A. | sodium sulphate |
| B. | sodium sulphite |
| C. | sodium thiosulphate |
| D. | None of these |
| Answer» D. None of these | |
| 128. |
Which of the following statements about photochemical smog is wrong? |
| A. | It has high concentration of oxidising agents |
| B. | It has low concentration of oxidising agent |
| C. | It can be controlled by controlling the release of\[N{{O}_{2}}\], hydrocarbons ozone, etc. |
| D. | Plantation of some plants like pinus helps in controlling photochemical smog. |
| Answer» C. It can be controlled by controlling the release of\[N{{O}_{2}}\], hydrocarbons ozone, etc. | |
| 129. |
Which one of the following statements about ozone and ozone layer is true? |
| A. | Ozone layer is beneficial to us because ozone cuts out the ultraviolet radiation of the sun |
| B. | The conversion of ozone to oxygen is an endothermic reaction |
| C. | Ozone has a triatomic linear molecule |
| D. | None of these |
| Answer» B. The conversion of ozone to oxygen is an endothermic reaction | |
| 130. |
The statement which is not correct about control of particulate pollution |
| A. | In electrostatic precipitator, the particulates are made to acquire positive charge which are then attracted by the negative electrode and removed |
| B. | Gravity settling chamber removes larger particles from the air |
| C. | Cyclone collector removes fine particles in the diameter range 5-20 microns |
| D. | Wet scrubbers are used to wash away all types of particulates |
| Answer» B. Gravity settling chamber removes larger particles from the air | |
| 131. |
The false statement among the followings : |
| A. | The average residence time of NO is one month |
| B. | Limestone acts as a sink for \[S{{O}_{x}}\] |
| C. | \[S{{O}_{x}}\] can be removed from flue gases by passing through a solution of citrate ions |
| D. | Ammonia acts as a sink for \[N{{O}_{x}}\] |
| Answer» B. Limestone acts as a sink for \[S{{O}_{x}}\] | |
| 132. |
Identify the wrong statement in the following. |
| A. | Chlorofluorocarbons are responsible for ozone layer depletion. |
| B. | Greenhouse effect is responsible for global warming. |
| C. | Ozone layer does not permit infrared radiation from the sun to reach the earth. |
| D. | Acid rain is mostly because of oxides of nitrogen and sulphur. |
| Answer» D. Acid rain is mostly because of oxides of nitrogen and sulphur. | |
| 133. |
The smog is essentially caused by the presence of |
| A. | Oxides of sulphur and nitrogen |
| B. | \[{{O}_{2}}\]and\[{{N}_{2}}\] |
| C. | \[{{O}_{2}}\] and\[{{O}_{3}}\] |
| D. | \[{{O}_{3}}\]and \[{{N}_{2}}\] |
| Answer» B. \[{{O}_{2}}\]and\[{{N}_{2}}\] | |
| 134. |
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value |
| A. | slightly lower than that of rain water without thunderstorm |
| B. | slightly higher than that when the thunderstorm is not there |
| C. | uninfluenced by occurrence of thunderstorm |
| D. | which depends upon the amount of dust in air |
| Answer» B. slightly higher than that when the thunderstorm is not there | |
| 135. |
Frequent occurrence of water blooms in a lake indicates |
| A. | nutrient deficiency |
| B. | oxygen deficiency |
| C. | excessive nutrient availability |
| D. | absence of herbivores in the lake |
| Answer» C. excessive nutrient availability | |
| 136. |
Which of the following is/are the hazardous pollutant(s) present in automobile exhaust gases? (i) \[{{N}_{2}}\], (ii) CO (iii) \[C{{H}_{4}}\] (iv) Oxides of nitrogen |
| A. | (ii) and (iii) |
| B. | (i) and (ii) |
| C. | (ii) and (iv) |
| D. | (i) and (iii) |
| Answer» D. (i) and (iii) | |
| 137. |
Water is often treated with chlorine to |
| A. | remove hardness |
| B. | increase oxygen content |
| C. | kill germs |
| D. | remove suspended particles |
| Answer» D. remove suspended particles | |
| 138. |
Identify the wrong statement in the following: |
| A. | Chlorofluorocarbons are responsible for ozone layer depletion. |
| B. | Greenhouse effect is responsible for global warming. |
| C. | Acid rain is mostly because of oxides of nitrogen and sulphur. |
| D. | Ozone layer does not permit infrared radiation from the sun to reach the earth. |
| Answer» E. | |
| 139. |
Which of the following practices will not come under green chemistry? |
| A. | If possible, making use of soap made of vegetable oils instead of using synthetic detergents. |
| B. | Using \[{{H}_{2}}{{O}_{2}}\]for bleaching purpose instead of using chlorine based bleaching agents. |
| C. | Using bicycle for travelling small distances instead of using petrol/ diesel based vehicles. |
| D. | Using plastic cans for neatly storing substances. |
| Answer» E. | |
| 140. |
Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of |
| A. | large number of mosquitoes |
| B. | increase in the amount of dissolved oxygen |
| C. | decrease in the amount of dissolved oxygen in water |
| D. | clogging of gills by mud |
| Answer» D. clogging of gills by mud | |
| 141. |
Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5 ppm indicates a water sample to be ________. |
| A. | rich in dissolved oxygen |
| B. | poor in dissolved oxygen |
| C. | highly polluted |
| D. | not suitable for aquatic life |
| Answer» B. poor in dissolved oxygen | |
| 142. |
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because _______. |
| A. | the reaction is endothermic and requires very high temperature. |
| B. | the reaction can be initiated only in presence of a catalyst. |
| C. | oxides of nitrogen are unstable. |
| D. | \[{{N}_{2}}\] and \[{{O}_{2}}\] are unreactive. |
| Answer» B. the reaction can be initiated only in presence of a catalyst. | |
| 143. |
Common salt besides being used in kitchen can also be used as the raw material for making (i) washing soda (ii) bleaching powder (iii) baking soda (iv) slaked lime |
| A. | (i) and (ii) |
| B. | (i), (ii) and (iv) |
| C. | (i) and (iii) |
| D. | (i), (iii) and (iv) |
| Answer» D. (i), (iii) and (iv) | |
| 144. |
Which of the following pairs of substances are chemically same? |
| A. | Lime water and milk of lime |
| B. | Dead burnt plaster and gypsum |
| C. | Both the above |
| D. | None of the above |
| Answer» B. Dead burnt plaster and gypsum | |
| 145. |
Bleaching powder is soluble in cold water giving a milky solution due to - |
| A. | available chlorine |
| B. | lime present in it |
| C. | calcium carbonate formation |
| D. | the absorption of carbon dioxide from atmosphere |
| Answer» C. calcium carbonate formation | |
| 146. |
Which of these choices is not a family of elements? |
| A. | Halogens |
| B. | Metals |
| C. | Inert gases |
| D. | All of these |
| Answer» C. Inert gases | |
| 147. |
If the two members of a Dobereiner triad are phosphorus and antimony, the third member of this triad is - |
| A. | arsenic |
| B. | sulphur |
| C. | iodine |
| D. | calcium |
| Answer» B. sulphur | |
| 148. |
Which scientist came up with the concept of a periodic table that included all of the known elements? |
| A. | Joseph Priestly |
| B. | Dmitri Mendeleev |
| C. | Antoine Lavoisier |
| D. | Albert Einstein |
| Answer» C. Antoine Lavoisier | |
| 149. |
The noble gases are unreactive because |
| A. | they react with sodium |
| B. | they have a full outer shell of electrons |
| C. | they have a half outer shell of neutrons |
| D. | they are too thin |
| Answer» C. they have a half outer shell of neutrons | |
| 150. |
Which shows variable valency - |
| A. | s-block elements |
| B. | p-block elements |
| C. | d-block elements |
| D. | Radioactive elements |
| Answer» D. Radioactive elements | |