MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
PET is a very familiar form of _____________. It is used for making bottles. |
| A. | Nylon |
| B. | Acrylic |
| C. | Polyester |
| D. | Rayon |
| Answer» D. Rayon | |
| 2. |
Pentlandite is an ore/mineral of _______. |
| A. | Titanium |
| B. | Nickel |
| C. | Uranium |
| D. | Zinc |
| Answer» C. Uranium | |
| 3. |
Permanent hardness of water is due to the presence of  ? |
| A. | Calcium sulphate |
| B. | Calcium bicarbonate |
| C. | Sodium bicarbonate |
| D. | Magnesium bicarbonate |
| Answer» B. Calcium bicarbonate | |
| 4. |
Pentane has _____ structural isomers. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 5. |
PCP is more commonly known as |
| A. | Acid |
| B. | Angel dust |
| C. | Ecstasy |
| D. | None of the above |
| Answer» C. Ecstasy | |
| 6. |
PAS Â is a drug used in the treatment of |
| A. | tuberculosis |
| B. | Cancer |
| C. | typhoid |
| D. | malaria |
| Answer» B. Cancer | |
| 7. |
PAS is a drug used in the treatment of |
| A. | Cancer |
| B. | Typhoid |
| C. | Malaria |
| D. | Tuberculosis |
| Answer» E. | |
| 8. |
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of : |
| A. | An acetylenic triple bond |
| B. | Two ethylenic double bonds |
| C. | A vinyl group |
| D. | An isopropyl group |
| Answer» D. An isopropyl group | |
| 9. |
Ozone is represented as _____. |
| A. | O3 |
| B. | H2O2 |
| C. | Cl2O |
| D. | N2O |
| Answer» B. H2O2 | |
| 10. |
Ozone is concentrated in the |
| A. | Stratosphere |
| B. | Troposphere |
| C. | Ionosphere |
| D. | Mesosphere |
| Answer» B. Troposphere | |
| 11. |
Ozone is an ______ of oxygen. |
| A. | Allotrope |
| B. | Isotope |
| C. | Isobar |
| D. | Isotone |
| Answer» B. Isotope | |
| 12. |
Oxygen molecule is ______. |
| A. | Monoatomic |
| B. | Diatomic |
| C. | Triatomic |
| D. | Polyatomic |
| Answer» C. Triatomic | |
| 13. |
Oxides of non-metals are usually ............_x005F_x000D_ |
| A. | acidic |
| B. | neutral |
| C. | less reactive |
| D. | basic |
| Answer» B. neutral | |
| 14. |
Oxides of metals are basic in nature , that is, they combine with acids to form salt and water. Select the odd metal oxide from the following ones._x005F_x000D_ |
| A. | Al2O3 |
| B. | Na2O |
| C. | MgO |
| D. | CaO |
| Answer» B. Na2O | |
| 15. |
Oxide of which of the following will turn red litmus blue? |
| A. | Magnesium |
| B. | Phosphorus |
| C. | Sulphur |
| D. | Carbon |
| Answer» B. Phosphorus | |
| 16. |
Orlon is a polymer of |
| A. | Dacron |
| B. | Acrylonitrile |
| C. | Polyamide Nylon |
| D. | None of the above |
| Answer» C. Polyamide Nylon | |
| 17. |
Out of all known elements, the minimum number is of ______._x005F_x000D_ |
| A. | Metals_x005F_x000D_ |
| B. | Non-metals_x005F_x000D_ |
| C. | Metalloids |
| D. | No option is correct |
| Answer» D. No option is correct | |
| 18. |
Order of basicity of amines in gaseous state? |
| A. | 2'> 1'> 3' > NH3 |
| B. | 3' > 2' > 1'> NH3 |
| C. | 1' > 2' > 3'> NH3 |
| D. | 2'> 3'> 1' > NH3 |
| Answer» C. 1' > 2' > 3'> NH3 | |
| 19. |
One turn of the citric acid cycle produces |
| A. | two molecules of carbon dioxide are released |
| B. | three molecules of NADH and one molecule of FADH2 are generated |
| C. | one molecule of ATP or GTP is produced |
| D. | All of the above |
| Answer» E. | |
| 20. |
One should use porcelain and not metal containers in a microwave oven because.. |
| A. | Charge may accumulate on the metal surface and there is danger of getting a shock |
| B. | Porcelain vessels are better conductors of heat and thus food gets cooked quickly |
| C. | Metal containers might undergo chemical reaction leading to spoilage of food |
| D. | Porcelain vessels are cheaper than the metal containers |
| Answer» B. Porcelain vessels are better conductors of heat and thus food gets cooked quickly | |
| 21. |
One of the ingredients of the paste on the side of a match box is |
| A. | Phosphorus pentaoxide |
| B. | Phosphorus trichloride |
| C. | Phosphorus trisulphide |
| D. | Phosphorus trioxide |
| Answer» D. Phosphorus trioxide | |
| 22. |
One reason for the formation of a strong bond by carbon is its ........ size._x005F_x000D_ Â _x005F_x000D_ |
| A. | large |
| B. | medium |
| C. | very large |
| D. | small |
| Answer» E. | |
| 23. |
One of the techniques used for desalination of sea water is |
| A. | Filtration |
| B. | Distillation |
| C. | Evaporation |
| D. | Condensation |
| Answer» C. Evaporation | |
| 24. |
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because ________ |
| A. | Mercury is a metal |
| B. | Density of mercury is greater than that of water |
| C. | Cohesion of mercury is greater than its adhesion with glass |
| D. | Cohesion of water is greater than its adhesion with glass |
| Answer» D. Cohesion of water is greater than its adhesion with glass | |
| 25. |
One method by which the components of air can be seperated is |
| A. | shaking with caustic soda solution |
| B. | shaking with water |
| C. | fractional distillation of liquid air |
| D. | passing air over heated magnesium |
| Answer» D. passing air over heated magnesium | |
| 26. |
Of the following radiations, the most easily stopped by air |
| A. | alpha - rays |
| B. | beta - rays |
| C. | gamma -rays |
| D. | x - rays |
| Answer» B. beta - rays | |
| 27. |
Of the following commonly used materials, the one that is not an alloy is |
| A. | Steel |
| B. | Brass |
| C. | Bronze |
| D. | Copper |
| Answer» E. | |
| 28. |
Of the following elements, which one has the same oxidation  state in all of its compounds? |
| A. | Hydrogen |
| B. | Fluroine |
| C. | Carbon |
| D. | oxygen |
| Answer» C. Carbon | |
| 29. |
Nylon threads are made of |
| A. | Polyester polymer |
| B. | Polyamide polymer |
| C. | Polyvinyl polymer |
| D. | Polysaccharide |
| Answer» C. Polyvinyl polymer | |
| 30. |
Number of Sigma and Pi bonds in benzene, respectively is |
| A. | 12 and 3 |
| B. | 3 and 3 |
| C. | 6 and 3 |
| D. | 9 and 3 |
| Answer» B. 3 and 3 | |
| 31. |
Number of moles of solute present in 1 litre of solution is |
| A. | Normality |
| B. | Molarity |
| C. | Molality |
| D. | Formality |
| Answer» C. Molality | |
| 32. |
Nucleons are |
| A. | protons and neutrons |
| B. | neutrons and electros |
| C. | protons and electrons |
| D. | protons, neutrons and electrons |
| Answer» B. neutrons and electros | |
| 33. |
Number of moles of CO2 present in 24 grams of carbon is |
| A. | 0.5 |
| B. | 1 |
| C. | 2 |
| D. | 0.25 |
| Answer» D. 0.25 | |
| 34. |
Nucleic acids are polymers of |
| A. | Nucleotides |
| B. | Aminoacids |
| C. | Proteins |
| D. | Sugars |
| Answer» B. Aminoacids | |
| 35. |
Nucleus of Hydrogen atom consists of |
| A. | 2 protons only |
| B. | 2 neutrons only |
| C. | 1 proton only |
| D. | 1 electron only |
| Answer» D. 1 electron only | |
| 36. |
Non-metals are generally more electronegative due to their:_x005F_x000D_ |
| A. | large number of electrons |
| B. | smaller atomic radii |
| C. | smaller atomic number |
| D. | smaller ionization energy |
| Answer» C. smaller atomic number | |
| 37. |
Non-metals generally contain ___ electrons in their outermost shell. |
| A. | 1, 2 or 3 |
| B. | 5, 6, 7 or 8 |
| C. | 8, 9, 10 |
| D. | 10 to 18 |
| Answer» C. 8, 9, 10 | |
| 38. |
Non-metallic character increases from ____. |
| A. | Magnesium to Barium |
| B. | Potassium to Caesium |
| C. | Oxygen to Selenium |
| D. | Sodium to Chlorine |
| Answer» E. | |
| 39. |
Non-metal oxides are usually |
| A. | acidic |
| B. | amphoteric |
| C. | neutral |
| D. | basic |
| Answer» B. amphoteric | |
| 40. |
Non metal found in liquid state? |
| A. | Chlorine |
| B. | Bromine |
| C. | Fluorine |
| D. | Iodine |
| Answer» C. Fluorine | |
| 41. |
Nitrification is the biological process of converting |
| A. | N2Â into nitrate |
| B. | N2Â into nitrite |
| C. | Ammonia into nitrite |
| D. | Ammonia into N2 |
| Answer» D. Ammonia into N2 | |
| 42. |
Nitric acid does not react with |
| A. | Gold |
| B. | Copper |
| C. | Zinc |
| D. | Iron |
| Answer» B. Copper | |
| 43. |
NH3 oxidation number? |
| A. | -1 |
| B. | 1 |
| C. | 0 |
| D. | -3 |
| Answer» D. -3 | |
| 44. |
Newlands arranged ___ the then known elements in his table of octaves. |
| A. | 63 |
| B. | 56 |
| C. | 58 |
| D. | 17 |
| Answer» C. 58 | |
| 45. |
Neutrino has |
| A. | charge +1, mass 1 |
| B. | charge 0, mas 0 |
| C. | charge -1,mass 1 |
| D. | charge 0, mass 1 |
| Answer» C. charge -1,mass 1 | |
| 46. |
Natural Rubber is a Polymer of |
| A. | butadiene |
| B. | 2methyl-1,3butadiene |
| C. | ethylene |
| D. | isoprene |
| Answer» E. | |
| 47. |
Natural radioactivity was discovered by |
| A. | Rutherford |
| B. | Becquerel |
| C. | Curie |
| D. | Schmidt |
| Answer» C. Curie | |
| 48. |
National Air Quality Index is determined on the basis of concentration of_____ pollutants. |
| A. | 5 |
| B. | 6 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 49. |
Name the reddish brown gas evolved when Lead Nitrate is heated strongly. |
| A. | Nitric oxide |
| B. | Nitrogen di oxide |
| C. | Di Nitrogen Oxide |
| D. | Nitrogen pentoxide |
| Answer» C. Di Nitrogen Oxide | |
| 50. |
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses? |
| A. | Markovnikov |
| B. | Zelinsky |
| C. | Mendeleev |
| D. | Zaitsev |
| Answer» D. Zaitsev | |