MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 1315 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which one is not the isotopes of hydrogen |
| A. | Protium |
| B. | Deuter |
| C. | Tritium |
| D. | All |
| Answer» D. All | |
| 102. |
Which one is not metal |
| A. | sulpher |
| B. | sugar |
| C. | nitogen |
| D. | all of these |
| Answer» E. | |
| 103. |
Which of these relationships is true of an uncharged atom? |
| A. | The atomic mass is equal to the atomic number. |
| B. | The number of electrons is equal to the number of neutrons. |
| C. | The number of protons is equal to the number of electrons. |
| D. | The atomic mass is equal to the number of electrons. |
| Answer» D. The atomic mass is equal to the number of electrons. | |
| 104. |
Which one among the following is the heaviest |
| A. | 1 mole of water molecules |
| B. | 1 mole of ammonia molecules |
| C. | 1 mole of sodium atoms |
| D. | 1 mole of hydrogen molecules |
| Answer» D. 1 mole of hydrogen molecules | |
| 105. |
Which of these rules are applicable for naming covalent compounds? |
| A. | nonmetal name + nonmetal name + suffix –ide |
| B. | nonmetal name + nonmetal name + suffix –ite |
| C. | metal name + nonmetal name + suffix –ide |
| D. | metal name + nonmetal name + suffix –ite |
| Answer» D. metal name + nonmetal name + suffix –ite | |
| 106. |
Which of these molecules are polar? Check all that apply. |
| A. | SO2 |
| B. | CH2Cl2 |
| C. | PCl3 |
| D. | All the above |
| Answer» E. | |
| 107. |
Which of these is not a macronutrient for Plants? |
| A. | Nitrogen |
| B. | Phosphorus |
| C. | Potassium |
| D. | Chlorine |
| Answer» E. | |
| 108. |
Which of these illustrates the Secondary Structure of a Protein?_x005F_x000D_ |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 109. |
Which of the statement(s) about the reaction given below is/are INCORRECT?_x005F_x000D_  _x005F_x000D_ 2PbO (s) + C (s) ⟶ 2Pb (s) + CO2 (g)_x005F_x000D_  _x005F_x000D_ I. Lead is getting reduced._x005F_x000D_ II. Carbon is getting reduced._x005F_x000D_ III. Lead oxide is getting reduced._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» B. Only I and III | |
| 110. |
Which of these is ATP? |
| A. | 3 Phosphate groups attached to chromosome attached to Adenine |
| B. | 3 Phosphate groups attached to a Ribose attached to Adenine |
| C. | 3 Phosphate groups attached to a Ribose attached to Thymine |
| D. | None of the above |
| Answer» C. 3 Phosphate groups attached to a Ribose attached to Thymine | |
| 111. |
Which of the properties of the element is a whole number |
| A. | atomic mass |
| B. | atomic number |
| C. | atomic radius |
| D. | atomic volume |
| Answer» C. atomic radius | |
| 112. |
Which of the metals has the maximum thermal conductivity? |
| A. | Iron |
| B. | Aluminium |
| C. | Silver |
| D. | Copper |
| Answer» D. Copper | |
| 113. |
Which of the following three elements have filled outermost shells?_x005F_x000D_ |
| A. | Magnesium (mg), Helium (He), Neon (Ne) |
| B. | Magnesium (mg), Calcium (ca), Barium (Ba) |
| C. | Lithium (Li), Sodium (Na), Potassium (K) |
| D. | Helium (He), Neon(Ne), Argon (Ar) |
| Answer» E. | |
| 114. |
Which of the following types of water is known to be absolutely free from any impurity? |
| A. | Mineral Water |
| B. | Distilled Water |
| C. | Spring Water |
| D. | Boiled Water |
| Answer» C. Spring Water | |
| 115. |
Which of the following type of medicine is used to treat indigestion? |
| A. | Sulpha drug |
| B. | Antihistamine |
| C. | Antibiotic |
| D. | Antacid |
| Answer» E. | |
| 116. |
Which of the given statements is/are true?_x005F_x000D_ Â _x005F_x000D_ A. The 2nd group elements are called Alkali metals.B. The 1st group element are called Alkaline metals.C. The 17th group elements are called Halogens._x005F_x000D_ |
| A. | B and C |
| B. | A and C |
| C. | Only A |
| D. | Only C |
| Answer» E. | |
| 117. |
Which of the following statements is not true?_x005F_x000D_ |
| A. | Bacteria present in the mouth produce acids by degradation of sugar and food particles remaining in the mouth. |
| B. | When pH of the mouth is higher than 5.5. then tooth decay starts. |
| C. | Tooth enamel made of calcium phosphate is the hardest substance in the body. |
| D. | Using toothpaste, which are generally basic, helps neutralise the excess acid and prevent tooth decay. |
| Answer» C. Tooth enamel made of calcium phosphate is the hardest substance in the body. | |
| 118. |
Which of the following statements is wrong with regard to strong acids? |
| A. | Strong acids react very rapidly with other substances (such as metal carbonates and metal hydrogen carbonates) |
| B. | Hydrochloric acid, Sulphuric acid and Nitric acid are strong acids |
| C. | Acids are those chemical substances that have a salty taste |
| D. | All minerals acids are strong acids |
| Answer» D. All minerals acids are strong acids | |
| 119. |
Which of the following statements is most appropriate for transition elements? |
| A. | Two of their outermost shells are incomplete |
| B. | They have eight electrons in their outermost shell |
| C. | Three of their outermost shells are incomplete |
| D. | Their outermost shell is incomplete |
| Answer» B. They have eight electrons in their outermost shell | |
| 120. |
Which of the following statements is Incorrect?_x005F_x000D_ |
| A. | The particles of matter have spaces between them |
| B. | The particles of matter are extremely small |
| C. | The particles of matter attract each other |
| D. | The particles of matter are in stationary state |
| Answer» E. | |
| 121. |
Which of the following statements is INCORRECT?_x005F_x000D_ I) Bleaching powder is a pale yellow powder_x005F_x000D_ II) Dry NH3 gas turns red litmus blue_x005F_x000D_ III) The pH of rain water is nearly 7_x005F_x000D_ IV) The pH of acid rain is nearly 5.6_x005F_x000D_ |
| A. | I, II and IV |
| B. | II and III |
| C. | I and IV |
| D. | Only II |
| Answer» E. | |
| 122. |
Which of the following statements is/are true or false?_x005F_x000D_ Â _x005F_x000D_ Statements :_x005F_x000D_ Â _x005F_x000D_ A) H2S burns in air to give H2O and SO2_x005F_x000D_ B) The decomposition of Ferrous Sulphate into Fe2O3, SO2 and SO3 occurs in the presence of heat._x005F_x000D_ |
| A. | Statements A and B both are true |
| B. | Statement A is true, while B is false |
| C. | Statements A and B are false |
| D. | Statement B is true, while A is false |
| Answer» B. Statement A is true, while B is false | |
| 123. |
Which of the following statement(s) is/are INCORRECT regarding Phosphorus? |
| A. | Phosphorus reacts vigorously with water |
| B. | It is a non-metal |
| C. | It catches fire on reacting with air |
| D. | It is found in group 15 of the modern periodic table |
| Answer» B. It is a non-metal | |
| 124. |
Which of the following statement(s) is/are INCORRECT?_x005F_x000D_ I. Alkenes are fairly unreactive._x005F_x000D_ II. Alkenes burn with blue flame._x005F_x000D_ III. Alkanes burn with yellow flame._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 125. |
Which of the following statement(s) is/are CORRECT?_x005F_x000D_ I. Bases are soapy to touch._x005F_x000D_ II. Bases generate OH– ions._x005F_x000D_ III. Metal oxides dissolve in water to form Acidic solution. _x005F_x000D_ |
| A. | Only I and II_x005F_x000D_ |
| B. | Only I and II |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» B. Only I and II | |
| 126. |
Which of the following statement(s) is/are CORRECT?_x005F_x000D_ I. Acids are sour in taste and generate H+ ions._x005F_x000D_ II. Acids are sour in taste and generate OH– ions._x005F_x000D_ III. Bases are bitter intaste and generate OH– ions. |
| A. | Only I and III |
| B. | Only I and II |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» B. Only I and II | |
| 127. |
Which of the following statements are CORRECT?_x005F_x000D_ Â _x005F_x000D_ I. The soap molecules form structures called micelles._x005F_x000D_ II Soap micelles cannot scatter light._x005F_x000D_ III. Oily dirt gets collected in the center of the micelle._x005F_x000D_ |
| A. | Both I and II |
| B. | Both I and III |
| C. | Both II and III |
| D. | All I, II and III |
| Answer» C. Both II and III | |
| 128. |
Which of the following statements are CORRECT?_x005F_x000D_ Â _x005F_x000D_ I. Oxides of metals are generally basic._x005F_x000D_ II. Oxides of non-metals are generally acidic._x005F_x000D_ III. Non-metals are generally electro positive._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» B. Only I and III | |
| 129. |
Which of the following statements are CORRECT?_x005F_x000D_ Â _x005F_x000D_ I. Ethanol is a good solvent for organic compounds._x005F_x000D_ II. Boiling and melting points of ethanol are low with respect to water._x005F_x000D_ III. Ethanol is used tincture iodine_x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 130. |
Which of the following statements are CORRECT?_x005F_x000D_ I. Melamine is a Thermo setting plastic._x005F_x000D_ II. It resists fire._x005F_x000D_ III It is a poor conductor of heat. |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 131. |
Which of the following statements are CORRECT?_x005F_x000D_ I. Esters are sweet smelling substance.II Esters are used in making perfumes.III. Functional group of ester is R-O-Rêž‹._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» B. Only I and III | |
| 132. |
Which of the following statements about the reaction below are INCORRECT?_x005F_x000D_ 2Pb + C → 2Pb + CO2_x005F_x000D_ A. Carbon di-oxide is getting, oxidisedB. Lead is getting reducedC. Carbon is oxidisedD. Lead oxide is getting reduced |
| A. | A and C |
| B. | A and B |
| C. | B and C |
| D. | A, B and C |
| Answer» C. B and C | |
| 133. |
Which of the following statements about monosaccharide structure is true? |
| A. | Aldoses and ketoses differ in the position of their hydroxyl groups. |
| B. | Monosaccharides can be classified according to the spatial arrangement of their atoms. |
| C. | All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms. |
| D. | A six-carbon sugar is called a pentose. |
| Answer» C. All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms. | |
| 134. |
Which of the following statement(s) about acids is/are CORRECT ?_x005F_x000D_  _x005F_x000D_ I. They change the color of red litmus to blue.II. They change the color of blue litmus to red.III. They have pH value less than 7._x005F_x000D_ |
| A. | Only I and III |
| B. | Only II and III |
| C. | Only I |
| D. | Only II |
| Answer» C. Only I | |
| 135. |
Which of the following solutions will be more Acidic?_x005F_x000D_ |
| A. | pH = 2 |
| B. | pH = 6 |
| C. | pH = 1 |
| D. | pH = 0 |
| Answer» E. | |
| 136. |
Which of the following statement is INCORRECT regarding Sodium? |
| A. | Sodium reacts vigorously with oxygen and water |
| B. | A lot of heat is generated when sodium reacts with water and oxygen |
| C. | It is stored in kerosene |
| D. | It is a non-metal |
| Answer» E. | |
| 137. |
Which of the following scientists gave the law that governs the force of attraction/repulsion between two charged particles? |
| A. | Charles Dufay |
| B. | Michael Faraday |
| C. | Archimedes |
| D. | Charles Coulomb |
| Answer» E. | |
| 138. |
Which of the following solutions is the most acidic among them all? |
| A. | Solution with pH value 0 |
| B. | Solution with pH value 6 |
| C. | Solution with pH value 1 |
| D. | Solution with pH value 7 |
| Answer» B. Solution with pH value 6 | |
| 139. |
Which of the following solutions do not conduct electricity? |
| A. | Sodium hydroxide solution |
| B. | Glucose solution |
| C. | Acetic acid solution |
| D. | Hydrochloric acid solution |
| Answer» C. Acetic acid solution | |
| 140. |
Which of the following scientists had done some calculations for the fifth state of matter? |
| A. | Satyendra Nath Bose |
| B. | CV Raman |
| C. | Vikram Sarabhai |
| D. | Homi Bhabha |
| Answer» B. CV Raman | |
| 141. |
Which of the following solutions is alkaline?_x005F_x000D_ |
| A. | H+ <1 × 10-7 Mol/l |
| B. | H+ = 1 × 10-4 Mol/l |
| C. | H+ = 1 × 10-7 Mol/l |
| D. | H+ > 1 × 10-7 Mol/l |
| Answer» B. H+ = 1 × 10-4 Mol/l | |
| 142. |
Which of the following reactions are redox reactions? |
| A. | Ba(s)+Cl2(g)--->BaCl2(s) |
| B. | Mg(s)+Br2(l)--->MgBr2(s) |
| C. | Al(s)+3Ag^+(aq)--->Al^3+(aq)+3Ag(s) |
| D. | All of the above |
| Answer» E. | |
| 143. |
Which of the following salts is acidic in nature? |
| A. | Sodium Carbonate |
| B. | Ammonium Phosphate |
| C. | Magnesium Sulphate |
| D. | Sadium Acetate |
| Answer» B. Ammonium Phosphate | |
| 144. |
Which of the following represents an ion? |
| A. | a particle having 9 protons, 9 neutrons, and 10 electrons |
| B. | a particle having 19 protons, 21 neutrons, and 19 electrons |
| C. | a particle having 14 protons, 14 neutrons, and 14 electrons |
| D. | a particle having 1 proton, 3 neutrons, and 1 electron |
| Answer» B. a particle having 19 protons, 21 neutrons, and 19 electrons | |
| 145. |
Which of the following reactions are exothermic?_x005F_x000D_  _x005F_x000D_ 1)   C + O2  → CO22)  2Mg + O2  → 2MgO3)  CuSO4 + 5H2O  → CuSO4.5H2O4)  All the above |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 146. |
Which of the following processes will take place the slowest for the same quantity of liquid? |
| A. | Boiling |
| B. | Condensation |
| C. | Evaporation |
| D. | Freezing |
| Answer» D. Freezing | |
| 147. |
Which of the following processes is used to remove reducible oxides from the metal? |
| A. | liquation |
| B. | cupellation |
| C. | poling |
| D. | electro refining |
| Answer» D. electro refining | |
| 148. |
Which of the following processes is endothermic? |
| A. | Melting of ice |
| B. | Mixing of potassium chloride with water |
| C. | Photosynthesis |
| D. | All of the above |
| Answer» E. | |
| 149. |
Which of the following pairs is INCORRECT?_x005F_x000D_ I. Haematite : Iron_x005F_x000D_ II. Pitchblende : Copper_x005F_x000D_ III. Monazite : Thorium |
| A. | Only I |
| B. | Only II |
| C. | Only I and Only II |
| D. | Only I and Only III |
| Answer» C. Only I and Only II | |
| 150. |
Which of the following polysaccharides contains a modified monosaccharide? |
| A. | starch |
| B. | chitin |
| C. | glycogen |
| D. | cellulose |
| Answer» C. glycogen | |