MCQOPTIONS
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MCQOPTIONS
This section includes 1184 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which one of following is not a property of pure quartz ? |
| A. | Coloured solid |
| B. | Brittle |
| C. | Hard |
| D. | All of above |
| Answer» B. Brittle | |
| 52. |
Which one of the following acids is present in lemon juice ? |
| A. | Citric acid |
| B. | Benzoic acid |
| C. | Tartaric acid |
| D. | Oxalic acid |
| Answer» B. Benzoic acid | |
| 53. |
Which one of the following alcohol has greater boiling point___________________? |
| A. | ethanol |
| B. | ethylene glaycol |
| C. | glycerol |
| D. | methanol |
| Answer» D. methanol | |
| 54. |
Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ? |
| A. | primary alcohol |
| B. | secondary alcohol |
| C. | tertiary alcohol |
| D. | dihydric alcohol |
| Answer» D. dihydric alcohol | |
| 55. |
Which one of the following alkali metals forms only normal oxide when it reacts with O2 ? |
| A. | Lithium |
| B. | Sodium |
| C. | Potassium |
| D. | Rubidium |
| Answer» B. Sodium | |
| 56. |
Which one of the following aqueous solutions will be basic ? |
| A. | NaCI |
| B. | Na2SO4 |
| C. | Na2CO3 |
| D. | FeCl3 |
| Answer» D. FeCl3 | |
| 57. |
Which one of the following carbonate is water insoluble ? |
| A. | Na2CO3 |
| B. | K2CO3 |
| C. | (NH4)2CO3 |
| D. | CaCO3 |
| Answer» E. | |
| 58. |
Which one of the following compound does not have – OH group___________________? |
| A. | ethylene glycol |
| B. | glycerol |
| C. | picric acid |
| D. | ethyl acetate |
| Answer» E. | |
| 59. |
Which one of the following compounds shows intense knocking ? |
| A. | n-pentane |
| B. | iso-heptane |
| C. | iso-octane |
| D. | n-heptane |
| Answer» E. | |
| 60. |
Which one of the following compounds usually smells like garlic ? |
| A. | P2O3 |
| B. | P2O5 |
| C. | H3PO3 |
| D. | All have same smell |
| Answer» B. P2O5 | |
| 61. |
Which one of the following does not show hydrogen bonding? |
| A. | Water |
| B. | Ethyl alcohol |
| C. | Phenol |
| D. | Diethyl ether |
| Answer» E. | |
| 62. |
Which one of the following element has highest oxidation state in its compounds ? |
| A. | Cr |
| B. | Mn |
| C. | Sn |
| D. | O |
| Answer» C. Sn | |
| 63. |
Which one of the following explain the shape of orbitals _________________? |
| A. | Principal of quantum number |
| B. | Azimuthal quantum number |
| C. | Magnetic quantum number |
| D. | Spin quantum number |
| Answer» C. Magnetic quantum number | |
| 64. |
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ? |
| A. | Urea |
| B. | Calcium superphosphate |
| C. | Diammonium phosphate |
| D. | Potassium nitrate |
| Answer» B. Calcium superphosphate | |
| 65. |
Which one of the following gives white precipitate with aqueous solution of BaCl2? |
| A. | NaHCO3 |
| B. | NaNO3 |
| C. | Na2CO3 |
| D. | Na2CrO4 |
| Answer» D. Na2CrO4 | |
| 66. |
Which one of the following halogens is present in Teflon________________? |
| A. | I2 |
| B. | Br2 |
| C. | Cl2 |
| D. | F2 |
| Answer» E. | |
| 67. |
Which one of the following has highest volatility_________________? |
| A. | Diethyl ether |
| B. | Ethyl alcohol |
| C. | Water |
| D. | Ethylene glycol |
| Answer» B. Ethyl alcohol | |
| 68. |
Which one of the following has polar covalent bond ? |
| A. | HF |
| B. | CH4 |
| C. | H2 |
| D. | N2 |
| Answer» B. CH4 | |
| 69. |
Which one of the following has the maximum number of isotopes ? |
| A. | oxygen |
| B. | carbon |
| C. | tin |
| D. | chlorine |
| Answer» D. chlorine | |
| 70. |
Which one of the following is a bridge element? |
| A. | Be |
| B. | Cl |
| C. | K |
| D. | P |
| Answer» B. Cl | |
| 71. |
Which one of the following is a buffer solution ? |
| A. | brine |
| B. | blood |
| C. | glue |
| D. | solution of CuSO4 |
| Answer» C. glue | |
| 72. |
Which one of the following is a state function ________________? |
| A. | pressure |
| B. | temperature |
| C. | enthalpy |
| D. | all of the above |
| Answer» E. | |
| 73. |
Which one of the following is also known as lactic acid ? |
| A. | 3-Hydroxy propanoic acid |
| B. | 2-Hydroxy propanoic acid |
| C. | 2-hydroxy butanoic acid |
| D. | 3-hydroxy butanoic acid |
| Answer» C. 2-hydroxy butanoic acid | |
| 74. |
Which one of the following is also known as tartaric acid ? |
| A. | 2 3-dihydroxy butance 1 4 -dioic acid |
| B. | 2 3 -dihydroxy butanedioic acid |
| C. | 2 3 -dihydroxy butanioc acid |
| D. | 2 2 -dihydroxy butanoic acid |
| Answer» B. 2 3 -dihydroxy butanedioic acid | |
| 75. |
Which one of the following is an inorganic fertilizer ? |
| A. | manure |
| B. | urea |
| C. | ammonium nitrate |
| D. | All |
| Answer» D. All | |
| 76. |
Which one of the following is caustic potash? |
| A. | NaOH |
| B. | KOH |
| C. | NaCl |
| D. | NaBH4 |
| Answer» C. NaCl | |
| 77. |
Which one of the following is not a good leaving group ? |
| A. | HSO4- |
| B. | Cl- |
| C. | OH- |
| D. | Br- |
| Answer» D. Br- | |
| 78. |
Which one of the following is not a periodic property ? |
| A. | Melting point of elements |
| B. | Boiling point of elements |
| C. | Ionization energy of elements |
| D. | Coordination number of ions |
| Answer» E. | |
| 79. |
Which one of the following is not a semiconductor ? |
| A. | Si |
| B. | Ge |
| C. | Se |
| D. | Sn |
| Answer» E. | |
| 80. |
Which one of the following is not an alkali metal ? |
| A. | Francium |
| B. | Caesium |
| C. | Rubidium |
| D. | Radium |
| Answer» E. | |
| 81. |
Which one of the following is not the use of graphite ? |
| A. | Lead pencils |
| B. | Abrasive |
| C. | Lubricant |
| D. | Electrode of electrolytic cell |
| Answer» C. Lubricant | |
| 82. |
Which one of the following is not the mono isotopic element ? |
| A. | arsenic |
| B. | uranium |
| C. | iodine |
| D. | nickel |
| Answer» C. iodine | |
| 83. |
Which one of the following is termed as benzul alcohol ? |
| A. | C6H5OH |
| B. | C6H5CH(OH)2 |
| C. | C6H5CH2OH |
| D. | C6H5COOH |
| Answer» D. C6H5COOH | |
| 84. |
Which one of the following is the correct sequence according to atomic weights? |
| A. | Fe>Co> Ni |
| B. | Co > Ni > Fe |
| C. | Ni> Co> Fe |
| D. | Co >Fe>Ni |
| Answer» C. Ni> Co> Fe | |
| 85. |
Which one of the following is the weakest acid in water__________________? |
| A. | HF |
| B. | HCI |
| C. | HBr |
| D. | HI |
| Answer» B. HCI | |
| 86. |
Which one of the following makes the bulk of hydrospheres content ? |
| A. | oceans |
| B. | glaciers & icecaps |
| C. | fresh water lakes and ponds |
| D. | All have equal distribution |
| Answer» B. glaciers & icecaps | |
| 87. |
Which one of the following looks odd__________________? |
| A. | H2SO4 |
| B. | KMnO4 |
| C. | H2S |
| D. | K2CrO4 |
| Answer» D. K2CrO4 | |
| 88. |
Which one of the following methods will not give benzene ? |
| A. | Heating sod. Salt of Benzoic acid with soda lime |
| B. | Distilling phenol with Zn dust |
| C. | Chlorobenzene with NaOH at 360°C & 150atm. |
| D. | Hydrolysis of benzene sulphonic acid with super heated steam |
| Answer» D. Hydrolysis of benzene sulphonic acid with super heated steam | |
| 89. |
Which one of the following molecules does not form alcohol when reacts with Grignard reagent ? |
| A. | formaldehyde |
| B. | acetaldehyde |
| C. | propanone |
| D. | carbondioxide |
| Answer» E. | |
| 90. |
Which one of the following pairs shown diagonal relationship in the periodic table ? |
| A. | Sodium and Lithium |
| B. | Lithium and magnesium |
| C. | Lithium and beryllium |
| D. | Boron and Beryllium |
| Answer» C. Lithium and beryllium | |
| 91. |
Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________? |
| A. | formaldehyde |
| B. | ketone |
| C. | ethylene epoxide |
| D. | both A & C |
| Answer» E. | |
| 92. |
Which one of the following raw material is not present in the cement ? |
| A. | lime stone |
| B. | gypsum |
| C. | KNO3 |
| D. | iron oxide |
| Answer» E. | |
| 93. |
Which one of the following salt does not hydrolyzed________________? |
| A. | Na2SO4 |
| B. | AlCl3 |
| C. | CuSO4 |
| D. | NH4Cl |
| Answer» B. AlCl3 | |
| 94. |
Which one of the following set of raw material is most suitable for manufacture of urea ? |
| A. | CH4 N2 and CO2 |
| B. | H2 N2 and CO |
| C. | H2 CO2 and H2O |
| D. | H2O N2 and H2 |
| Answer» B. H2 N2 and CO | |
| 95. |
Which one of the following sets consists of all coinage metals ? |
| A. | Cu Hg Au |
| B. | Cu Ag Au |
| C. | Ag Au Hg |
| D. | Cu Fe Au |
| Answer» C. Ag Au Hg | |
| 96. |
Which one of the following species is not an electrophile ? |
| A. | NH3 |
| B. | Br+ |
| C. | H+ |
| D. | BF3 |
| Answer» B. Br+ | |
| 97. |
Which one of the following statement is not correct about benzene ? |
| A. | On hydrogenation 208 KJ/mole is liberated |
| B. | C-H bond length in benzene is 1.09 A? |
| C. | Molecular mass of benzene is 78.108 |
| D. | Resonance energy of benzene is 150.5 K Cal/mole |
| Answer» E. | |
| 98. |
Which one of the following substances conducts electricity by the movement of ions ? |
| A. | Graphite |
| B. | Copper |
| C. | Molten sodium chloride |
| D. | Mercury |
| Answer» D. Mercury | |
| 99. |
Which one of the following will be sulphonated readily ? |
| A. | Chlorobenzene |
| B. | Toluene |
| C. | Nitrobenzene |
| D. | Benzene |
| Answer» C. Nitrobenzene | |
| 100. |
Which one of the followings possesses melting point below 0°C? |
| A. | Nitrogen |
| B. | Phosphorus |
| C. | Carbon |
| D. | Bismuth |
| Answer» B. Phosphorus | |