Explore topic-wise MCQs in General Knowledge.

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
Discussion
102.

Which one is not metal

A. sulpher
B. sugar
C. nitogen
D. all of these
Answer» E.
Discussion
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.
Discussion
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
Discussion
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
Discussion
106.

Which of these molecules are polar? Check all that apply.

A. SO2
B. CH2Cl2
C. PCl3
D. All the above
Answer» E.
Discussion
107.

Which of these is not a macronutrient for Plants?

A. Nitrogen
B. Phosphorus
C. Potassium
D. Chlorine
Answer» E.
Discussion
108.

Which of these illustrates the Secondary Structure of a Protein?_x005F_x000D_

A. A
B. B
C. C
D. D
Answer» C. C
Discussion
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
Discussion
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
Discussion
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
Discussion
112.

Which of the metals has the maximum thermal conductivity?

A. Iron
B. Aluminium
C. Silver
D. Copper
Answer» D. Copper
Discussion
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.
Discussion
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
Discussion
115.

Which of the following type of medicine is used to treat indigestion?

A. Sulpha drug
B. Antihistamine
C. Antibiotic
D. Antacid
Answer» E.
Discussion
116.

Which of the given statements is/are true?_x005F_x000D_  _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.
Discussion
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.
Discussion
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
Discussion
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
Discussion
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.
Discussion
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.
Discussion
122.

Which of the following statements is/are true or false?_x005F_x000D_  _x005F_x000D_ Statements :_x005F_x000D_  _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
Discussion
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
Discussion
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.
Discussion
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
Discussion
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
Discussion
127.

Which of the following statements are CORRECT?_x005F_x000D_  _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
Discussion
128.

Which of the following statements are CORRECT?_x005F_x000D_  _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
Discussion
129.

Which of the following statements are CORRECT?_x005F_x000D_  _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.
Discussion
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.
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion
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.
Discussion
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.
Discussion
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.
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion
150.

Which of the following polysaccharides contains a modified monosaccharide?

A. starch
B. chitin
C. glycogen
D. cellulose
Answer» C. glycogen
Discussion