Top 50 General Science GK Questions

General Science GK Questions and answers

Q.31 Rusting is an ___________ reaction.
 (A) Ionization
 (B) Oxidation
 (C) Reduction
 (D) None of the above
 

Q.32 What is needed for rusting to occur?
 (A) Water
 (B) Oxygen
 (C) Water and Oxygen
 (D) Carbon dioxide
 

Q.33 All acids are ________________
 (A) Corrosive when they are strong
 (B) Corrosive when they are weak
 (C) Irritant when they are strong
 (D) None of the above
 

Q.34 When an acid reacts with a metal carbonate, the products formed are _____________
 (A) Salt, Water, and Carbon dioxide
 (B) Salt and Water
 (C) Water and Carbon dioxide
 (D) Salt and Carbon dioxide
 

Q.35 Which one is an alkaline among the following?
 (A) Vinegar
 (B) Saliva
 (C) Ammonia
 (D) Acid rain
 

Q.36 In Periodic table elements are arranged according to their ___________
 (A) Mass number
 (B) Atomic and Mass number
 (C) Atomic number
 (D) None of the above
 

Q.37 What is an Isotope?
 (A) Atoms of an element having a different mass number
 (B) Atoms of an element having the same mass number
 (C) Atoms of an element having a different atomic number
 (D) Atoms of an element having the same atomic number
 

Q.38 Atomic number is represented by which letter?
 (A) A
 (B) M
 (C) X
 (D) Z
 

Q.39 Which science is sometimes called ‘central science’?
 (A) Physics
 (B) Chemistry
 (C) Biology
 (D) Geology
 

Q.40 Which acid is used in the body to help digestion?
 (A) Hydrochloric Acid
 (B) Sulphuric Acid
 (C) Acetic Acid
 (D) Boric Acid
 

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