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
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Q.32 What is needed for rusting to occur?
 (A) Water
 (B) Oxygen
 (C) Water and Oxygen
 (D) Carbon dioxide
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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
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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
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Q.35 Which one is an alkaline among the following?
 (A) Vinegar
 (B) Saliva
 (C) Ammonia
 (D) Acid rain
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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
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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
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Q.38 Atomic number is represented by which letter?
 (A) A
 (B) M
 (C) X
 (D) Z
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Q.39 Which science is sometimes called ‘central science’?
 (A) Physics
 (B) Chemistry
 (C) Biology
 (D) Geology
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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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