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. |
Which of the following is the most reactive_________________? |
| A. | ethane |
| B. | ethyne |
| C. | ethene |
| D. | benzene |
| Answer» D. benzene | |
| 2. |
Which of the following is the formula of chrome red ? |
| A. | Pb3 O4 |
| B. | 2Pb CO3 – Pb (OH)2 |
| C. | Pb Cr O4 – Pb (OH)2 |
| D. | Pb2O |
| Answer» B. 2Pb CO3 – Pb (OH)2 | |
| 3. |
Which of the following is the best explanation that CO2 is non polar molecule __________________? |
| A. | Linear geometry |
| B. | Dipole moment is zero |
| C. | Sp hybridization |
| D. | None |
| Answer» C. Sp hybridization | |
| 4. |
Which of the following is soluble in water? |
| A. | AgF |
| B. | AgCl |
| C. | AgBr |
| D. | AgI |
| Answer» B. AgCl | |
| 5. |
Which of the following is pseudo solid_____________________? |
| A. | CaF2 |
| B. | NaCl |
| C. | Glass |
| D. | Diamond |
| Answer» D. Diamond | |
| 6. |
Which of the following is not use of compounds of Fluorine________________? |
| A. | SbF3 is used for manufacture of pottery |
| B. | Sodium fluoroacetate is a rat poison |
| C. | Cu F2 is used in ceramic industry |
| D. | None of the above |
| Answer» E. | |
| 7. |
Which of the following is not primary pollutant__________________? |
| A. | SO3 |
| B. | CO |
| C. | NO |
| D. | H2SO4 |
| Answer» E. | |
| 8. |
Which of the following is not considered as an intermolecular force between molecules ? |
| A. | Coordinate covalent bonds |
| B. | Hydrogen bonds |
| C. | Debye forces |
| D. | London dispersion forces |
| Answer» B. Hydrogen bonds | |
| 9. |
Which of the following is not characteristics of reversible reaction__________________? |
| A. | whole amount of reactant does not change into product |
| B. | chemical equilibrium is established |
| C. | a catalyst changes the direction of reaction |
| D. | rate of forward reaction decreases as reaction proceeds |
| Answer» D. rate of forward reaction decreases as reaction proceeds | |
| 10. |
Which of the following is not an ester_________________? |
| A. | amyl acetate |
| B. | sodium butyrate |
| C. | isobutyle formate |
| D. | octyl acetate |
| Answer» C. isobutyle formate | |
| 11. |
Which of the following is not an amino acids_____________________? |
| A. | glumatic acid |
| B. | lactic acid |
| C. | aspartic acids |
| D. | glycine |
| Answer» C. aspartic acids | |
| 12. |
Which of the following is not a use of silicon ? |
| A. | Lubricants |
| B. | Hydraulic brakes |
| C. | Antifreeze |
| D. | Water repellent |
| Answer» D. Water repellent | |
| 13. |
Which of the following is not a use of formaldehyde ? |
| A. | in silvery mirror |
| B. | in making medicine urotropine |
| C. | in making throat lozenges |
| D. | in making acetic acid |
| Answer» E. | |
| 14. |
Which of the following is not a use of acetaldehyde ? |
| A. | formation of phenolic resins |
| B. | formation of mirror |
| C. | antiseptic inhalant |
| D. | formation of throat lozenges |
| Answer» E. | |
| 15. |
Which of the following is not a secondary pollutant_________________? |
| A. | ozone |
| B. | carbonic acid |
| C. | sulphuric acid |
| D. | carbon dioxide |
| Answer» E. | |
| 16. |
Which of the following is not a macromolecule ? |
| A. | sand |
| B. | haemoglobin |
| C. | diamond |
| D. | maltose |
| Answer» E. | |
| 17. |
Which of the following is not a heavy industry ? |
| A. | iron |
| B. | fertilizer |
| C. | paper |
| D. | none |
| Answer» E. | |
| 18. |
Which of the following is not a fatty acid ? |
| A. | Propanoic acid |
| B. | Acetic acid |
| C. | Phthalic acid |
| D. | Butanoic acid |
| Answer» D. Butanoic acid | |
| 19. |
Which of the following is not a condition for the formation of smog ? |
| A. | sufficient NO |
| B. | sunlight |
| C. | less movement of air |
| D. | winds |
| Answer» E. | |
| 20. |
Which of the following is most soluble on water? |
| A. | BaSO4 |
| B. | SrSO4 |
| C. | CaSO4 |
| D. | MgSO4 |
| Answer» E. | |
| 21. |
Which of the following is mineral fiber ? |
| A. | Teflon |
| B. | asbestos |
| C. | saran |
| D. | acrylic |
| Answer» C. saran | |
| 22. |
Which of the following is metasilicic acid ? |
| A. | H2SnO3 |
| B. | H2SiO3 |
| C. | H3AsO4 |
| D. | H3SbO4 |
| Answer» C. H3AsO4 | |
| 23. |
Which of the following is macronutrient ? |
| A. | Cu |
| B. | Cl |
| C. | H |
| D. | Zn |
| Answer» D. Zn | |
| 24. |
Which of the following is incorrect statement about nitrogen importance ? |
| A. | It enhances plant growth |
| B. | It is involved in the synthesis of protein and nucleic acids |
| C. | it accelerates fruits and flowers growth |
| D. | It is involved in the chlorophyll synthesis |
| Answer» D. It is involved in the chlorophyll synthesis | |
| 25. |
Which of the following is different with respect to physical appearance ? |
| A. | Arsenic |
| B. | Phosphorus |
| C. | Antimony |
| D. | Bismuth |
| Answer» C. Antimony | |
| 26. |
Which of the following is an unsaturated carboxylic acid___________________? |
| A. | malonic acid |
| B. | oxalic acid |
| C. | succinic acid |
| D. | maleic acid |
| Answer» E. | |
| 27. |
Which of the following is an example of liquid in gas solution? |
| A. | Opals |
| B. | Dust particles in smoke |
| C. | Paints |
| D. | Fog |
| Answer» E. | |
| 28. |
Which of the following is an amide________________? |
| A. | R-NH2 |
| B. | RCONH2 |
| C. | R – NH – R |
| D. | C6H5NH2 |
| Answer» C. R – NH – R | |
| 29. |
Which of the following is a symmetrical ketone___________________? |
| A. | 3 – hexanone |
| B. | acetone |
| C. | butanone |
| D. | 2-pentanone |
| Answer» C. butanone | |
| 30. |
Which of the following is a substance? |
| A. | Sea water |
| B. | Brass |
| C. | Tape water |
| D. | Graphite |
| E. | Sand |
| Answer» E. Sand | |
| 31. |
Which of the following is a macro nutrient ? |
| A. | boron |
| B. | iron |
| C. | copper |
| D. | carbon |
| Answer» E. | |
| 32. |
Which of the following ion formation is always exothermic ? |
| A. | Uni-negative |
| B. | Uni-positive |
| C. | Di-negative |
| D. | Di-positive |
| Answer» B. Uni-positive | |
| 33. |
Which of the following ion is stable in aqueous solution ? |
| A. | H+ |
| B. | H- |
| C. | Cl- |
| D. | All are stable |
| Answer» D. All are stable | |
| 34. |
Which of the following have their outer most shell complete in atomic form ? |
| A. | Noble gases |
| B. | Alkali metals |
| C. | Coinage metals |
| D. | Gun metals |
| Answer» B. Alkali metals | |
| 35. |
Which of the following has strongest intermolecular forces of attraction ? |
| A. | Hydrogen (H2) |
| B. | Chlorine (Cl2) |
| C. | lodine (I2) |
| D. | Methane (CH4) |
| Answer» D. Methane (CH4) | |
| 36. |
Which of the following has orange flavour__________________? |
| A. | isobutyl formate |
| B. | octyl acetate |
| C. | ethyl butyrate |
| D. | amyl lactate |
| Answer» C. ethyl butyrate | |
| 37. |
Which of the following haloalkane is hydrolysed by SN1 mechanism? |
| A. | CH3Br |
| B. | CH3CH2Br |
| C. | CH3CH2CH2Br |
| D. | (CH3)3CBr |
| Answer» E. | |
| 38. |
Which of the following gases shows more ideal behaviour at 0°C___________? |
| A. | H2 |
| B. | CH4 |
| C. | He |
| D. | NH3 |
| Answer» D. NH3 | |
| 39. |
Which of the following gases is the main cause of acid rain ? |
| A. | CO |
| B. | NO2 |
| C. | both a & b |
| D. | none of the above |
| Answer» C. both a & b | |
| 40. |
Which of the following fertilizers is not useful for paddy rice ? |
| A. | urea |
| B. | DAP |
| C. | Ammonium sulphate |
| D. | Ammonium nitrate |
| Answer» E. | |
| 41. |
Which of the following factors help to measure quallity of water ? |
| A. | DO |
| B. | BOD |
| C. | COD |
| D. | all of the above |
| Answer» E. | |
| 42. |
Which of the following elements react with steam to produce H2 gas? |
| A. | Pd |
| B. | Ni |
| C. | Sn |
| D. | All of the above |
| Answer» E. | |
| 43. |
Which of the following elements has greater 1st ionization energy__________________? |
| A. | B |
| B. | C |
| C. | N |
| D. | O |
| Answer» D. O | |
| 44. |
Which of the following element act as inert electrode________________? |
| A. | Cu |
| B. | Ag |
| C. | Pt |
| D. | None |
| Answer» D. None | |
| 45. |
Which of the following elements conduct electricity and also melts below 100°C ? |
| A. | Aluminium |
| B. | Sodium |
| C. | Carbon |
| D. | Sulphur |
| Answer» C. Carbon | |
| 46. |
Which of the following element has the maximum electron affinity_____? |
| A. | Cl |
| B. | Br |
| C. | I |
| D. | F |
| Answer» B. Br | |
| 47. |
Which of the following element doesnot show allotropy_________________? |
| A. | Carbon |
| B. | Arsenic |
| C. | Nitrogen |
| D. | Sulphur |
| Answer» D. Sulphur | |
| 48. |
Which of the following effects best explains that o-nitrophenol is insoluble in water? |
| A. | Inductive effect |
| B. | Resonance effect |
| C. | Intermolecular H-bonding |
| D. | Isomeric effect |
| Answer» D. Isomeric effect | |
| 49. |
Which of the following does not give Borax bead test ? |
| A. | Cu |
| B. | Cr |
| C. | Ni |
| D. | A1 |
| Answer» E. | |
| 50. |
Which of the following does not contain phosphorus ? |
| A. | Yolk of egg |
| B. | Bone |
| C. | Nerves |
| D. | Steel |
| Answer» E. | |