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.
| 201. |
Which of the following statements is incorrect from the point of view of modern periodic table? |
| A. | Elements are arranged in the order of increasing atomic number |
| B. | There are eighteen vertical columns called groups |
| C. | Transition elements fit in the middle of long periods |
| D. | Noble gases are arbitrarily placed in eighteenth group |
| Answer» E. | |
| 202. |
Which fact is not valid for Dobereiner's triads? |
| A. | The atomic weight of middle element is roughly average of the other two elements |
| B. | The properties of middle element is roughly average of the other two elements |
| C. | The elements of triads belong to the same group of modem periodic table |
| D. | The elements of triads have same valency electrons. |
| Answer» C. The elements of triads belong to the same group of modem periodic table | |
| 203. |
The element with smallest size in group 13 is |
| A. | beryllium |
| B. | carbon |
| C. | aluminium |
| D. | boron |
| Answer» E. | |
| 204. |
The number of elements in the third period of periodic table is |
| A. | 2 |
| B. | 8 |
| C. | 18 |
| D. | 32 |
| Answer» C. 18 | |
| 205. |
The elements with atomic numbers 2, 10, 18, 36, 54 and 86 are all |
| A. | halogen |
| B. | noble gases |
| C. | noble metals |
| D. | light metals |
| Answer» C. noble metals | |
| 206. |
The molecular formula \[{{P}_{2}}{{O}_{5}}\] means that |
| A. | a molecule contains 2 atoms of P and 5 atoms of O |
| B. | the ratio of the mass of P to the mass of O in the molecule is 2 : 5 |
| C. | there are twice as many P atoms in the molecule as there are 0 atoms |
| D. | the ratio of the mass of P to the mass of O in the molecule is 5 : 2 |
| Answer» B. the ratio of the mass of P to the mass of O in the molecule is 2 : 5 | |
| 207. |
When an atom loses electrons, it is called a (an) _____ and has a ____ charge. |
| A. | anion, positive |
| B. | cation, positive |
| C. | anion, negative |
| D. | cation, positive |
| Answer» C. anion, negative | |
| 208. |
Adding electrons to an atom will result in a (an) |
| A. | molecule |
| B. | anion |
| C. | cation |
| D. | salt |
| Answer» C. cation | |
| 209. |
Molecular mass is defined as the |
| A. | mass of one atom compared with the mass of one molecule |
| B. | mass of one atom compared with the mass of one atom of hydrogen |
| C. | mass of one molecule of any substance compared with the mass of one atom of C-12 |
| D. | None of these |
| Answer» D. None of these | |
| 210. |
The law of definite proportions was given by - |
| A. | John Dalton |
| B. | Humphrey Davy |
| C. | Proust |
| D. | Michael Faraday |
| Answer» D. Michael Faraday | |
| 211. |
One gram of which of the following contains largest number of oxygen atoms? |
| A. | \[O\] |
| B. | \[{{O}_{2}}\] |
| C. | \[{{O}_{3}}\] |
| D. | All contains same |
| Answer» D. All contains same | |
| 212. |
Dalton's atomic theory successfully explained (i) Law of conservation of mass (ii) Law of constant composition (iii) Law of radioactivity (iv) Law of multiple proportion |
| A. | (ii), (ii) and (iii) |
| B. | (i), (iii) and (iv) |
| C. | (ii), (iii) and (iv) |
| D. | (i), (ii) and (iv) |
| Answer» E. | |
| 213. |
While performing cathode ray experiments, it was observed that there was no passage of electric current under normal conditions. Which of the following can account for this observation? |
| A. | Dust particles are present in air |
| B. | Carbon dioxide is present in air |
| C. | Air is a poor conductor of electricity under normal conditions |
| D. | None of these |
| Answer» D. None of these | |
| 214. |
Members of which of the following have similar chemical properties? |
| A. | Isotope |
| B. | Isobars |
| C. | Allotropes |
| D. | Both isotopes and allotropes |
| Answer» D. Both isotopes and allotropes | |
| 215. |
Which of the following is not a basic particle of an element? |
| A. | An atom |
| B. | A molecule |
| C. | Anion |
| D. | None of these |
| Answer» C. Anion | |
| 216. |
Which of the following isotopes is used as the standard for atomic mass? |
| A. | \[^{12}C\] |
| B. | \[^{16}O\] |
| C. | \[^{13}C\] |
| D. | \[^{1}H\] |
| Answer» B. \[^{16}O\] | |
| 217. |
The isotopes of an element have |
| A. | same number of neutrons |
| B. | same atomic number |
| C. | same mass number |
| D. | None of these |
| Answer» C. same mass number | |
| 218. |
Which of the following statements is incorrect for cathode rays? |
| A. | They move in straight line |
| B. | Their nature depends upon the nature of gas present in the discharge tube. |
| C. | They cost shadow of solid objects placed in their path |
| D. | They get deflected towards positive charge. |
| Answer» C. They cost shadow of solid objects placed in their path | |
| 219. |
In an atom valence electron are present in |
| A. | outermost orbit |
| B. | next to outermost orbit |
| C. | first orbit |
| D. | any one of its orbit |
| Answer» B. next to outermost orbit | |
| 220. |
Camphor can be purified by |
| A. | distillation |
| B. | filtration |
| C. | sedimentation |
| D. | sublimation |
| Answer» E. | |
| 221. |
Two substances A and B when brought together form a substance C with the evolution of heat. The properties of C are entirely different from those of A and B. The substance C is |
| A. | a compound |
| B. | an element |
| C. | a mixture |
| D. | none of these. |
| Answer» B. an element | |
| 222. |
A mixture of common salt, sulphur, sand and iron filings is shaken with carbon disulphide and filtered through a filter paper. The filtrate is evaporated to dryness in a china dish. What will be left in the dish after evaporation? |
| A. | Sand |
| B. | Sulphur |
| C. | Iron filings |
| D. | Common salt |
| Answer» C. Iron filings | |
| 223. |
When dispersed phase is liquid and dispersion medium is gas then the colloidal system is called |
| A. | smoke |
| B. | clouds |
| C. | jellies |
| D. | emulsions |
| Answer» C. jellies | |
| 224. |
Which of the following is a colloid? |
| A. | Sugar solution |
| B. | Urea solution |
| C. | Silicic acid |
| D. | NaCI solution |
| Answer» D. NaCI solution | |
| 225. |
Which of the following statements is true about a colloidal system? |
| A. | It carries a net electric charge |
| B. | It consists of one phase only |
| C. | It can be made out of two gases |
| D. | It is electrically neutral as a whole |
| Answer» E. | |
| 226. |
Solutions with low concentrations of solutes are |
| A. | concentrated |
| B. | dilute |
| C. | solvents |
| D. | None of these |
| Answer» C. solvents | |
| 227. |
A change is said to be a chemical change when |
| A. | it is accompanied by energy change |
| B. | it is accompanied by formation of new substances |
| C. | it is accompanied by change in physical properties |
| D. | All the above are correct |
| Answer» E. | |
| 228. |
Select the one that is not a chemical change? |
| A. | Dissolution of ammonia in water. |
| B. | Dissolution of carbon dioxide in water. |
| C. | Dissolution of oxygen in water. |
| D. | None of these is a chemical change. |
| Answer» D. None of these is a chemical change. | |
| 229. |
Brass is an example of |
| A. | compound |
| B. | element |
| C. | homogeneous mixture |
| D. | heterogeneous mixture |
| Answer» D. heterogeneous mixture | |
| 230. |
The size of colloidal particles usually lies in the range |
| A. | \[{{10}^{-5}}-{{10}^{-7}}cm\] |
| B. | \[{{10}^{-7}}-{{10}^{-9}}cm\] |
| C. | \[{{10}^{-3}}-{{10}^{-5}}cm\] |
| D. | \[{{10}^{-2}}-{{10}^{-6}}cm\] |
| Answer» B. \[{{10}^{-7}}-{{10}^{-9}}cm\] | |
| 231. |
Distillation is a good separation technique for |
| A. | solids |
| B. | liquids |
| C. | solid alloys |
| D. | gases |
| Answer» C. solid alloys | |
| 232. |
Melting points can separate materials because |
| A. | substances melt at different temperatures |
| B. | molecules vibrate rapidly when heated |
| C. | heat causes molecules to disintegrate |
| D. | many substances fuse at the melting point |
| Answer» B. molecules vibrate rapidly when heated | |
| 233. |
Filtration can be used to separate |
| A. | solids from solids |
| B. | liquids from solids |
| C. | liquids from liquids |
| D. | liquids from gases |
| Answer» C. liquids from liquids | |
| 234. |
Which of the following is considered to be a pure substance? |
| A. | Granite |
| B. | Sodium chloride |
| C. | Muddy water |
| D. | Milk of magnesia |
| Answer» C. Muddy water | |
| 235. |
A sample contains two substances and has uniform properties. The sample is |
| A. | a compound |
| B. | a heterogeneous mixture |
| C. | an element |
| D. | a homogeneous mixture |
| Answer» E. | |
| 236. |
Salt can be obtained from sea water by |
| A. | filtration |
| B. | decantation |
| C. | evaporation |
| D. | sublimation |
| Answer» D. sublimation | |
| 237. |
Which of the following is a compound? |
| A. | Stainless steel |
| B. | Bronze |
| C. | Graphite |
| D. | Hydrogen sulphide |
| Answer» E. | |
| 238. |
Air is regarded as a mixture because |
| A. | its pressure may very |
| B. | its temperature may change |
| C. | its volume changes under different conditions |
| D. | its composition may vary |
| Answer» E. | |
| 239. |
Which of the following statements about vitamin \[{{B}_{12}}\] is incorrect? |
| A. | It has a cobalt atom |
| B. | It occurs in plants |
| C. | It is also present in rain water |
| D. | It is needed for human body in very small amounts |
| Answer» D. It is needed for human body in very small amounts | |
| 240. |
Flint glass is obtained from which of the following? |
| A. | Zinc and barium borosilicate |
| B. | Sand, red lead and potassium carbonate |
| C. | Sodium aluminum borosilicate |
| D. | Pure silica and zinc oxide |
| Answer» C. Sodium aluminum borosilicate | |
| 241. |
Which one of the following correctly defines the state of glass? |
| A. | Crystalline solid |
| B. | Super cooled liquid |
| C. | Condensed gas |
| D. | Liquid crystal |
| Answer» C. Condensed gas | |
| 242. |
The reaction that takes place in soap making is called saponification. Basically soap is sodium or potassium salts of |
| A. | long chain monocarboxylic acids |
| B. | glycerol |
| C. | long chain dicarboxylic acids |
| D. | long chain tricarboxylic acids |
| Answer» E. | |
| 243. |
The most important raw materials used in the manufacture of cement are |
| A. | potassium nitrate, charcoal and sulphur |
| B. | limestone, clay and gypsum |
| C. | transition metal oxides, sodium hydroxide or potassium hydroxide |
| D. | limestone, sodium carbonate and silica |
| Answer» C. transition metal oxides, sodium hydroxide or potassium hydroxide | |
| 244. |
The major component used in preparation of different types of glasses is |
| A. | silica |
| B. | sodium borate |
| C. | calcium silicate |
| D. | sodium silicate |
| Answer» B. sodium borate | |
| 245. |
Night-blindness is caused due to the deficiency of |
| A. | Vitamin D |
| B. | Vitamin A |
| C. | Vitamin C |
| D. | Vitamin B |
| Answer» C. Vitamin C | |
| 246. |
Which one of the following contains cobalt? |
| A. | Riboflavin |
| B. | Vitamin \[{{B}_{12}}\] |
| C. | Vitamin A |
| D. | Vitamin \[{{B}_{6}}\] |
| Answer» C. Vitamin A | |
| 247. |
What is the reason for white cement to be white? |
| A. | It does not contain carbon |
| B. | It does not contain silicon |
| C. | It does not contain iron |
| D. | It does not contain calcium |
| Answer» D. It does not contain calcium | |
| 248. |
Deficiency of vitamin A results in |
| A. | lose in apetite |
| B. | skin diseases |
| C. | sterility |
| D. | retarted growth |
| Answer» E. | |
| 249. |
Which one of the following is not contained in Portland cement? |
| A. | \[C{{a}_{3}}A{{l}_{2}}{{O}_{6}}\] |
| B. | \[C{{a}_{3}}Si{{O}_{5}}\] |
| C. | \[C{{a}_{2}}Si{{O}_{4}}\] |
| D. | \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\] |
| Answer» E. | |
| 250. |
Soaps are sodium salts of tatty acids. Which of the following fatty acid does not form soap? |
| A. | Butyric acid |
| B. | Oleic acid |
| C. | Palmitic acid |
| D. | Stearic acid |
| Answer» B. Oleic acid | |