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OTS (Open Testing Service) · Khuddam-ul-Hujjaj/ Nazims for Hajj (OTS 2027 - Includes All NTS Past Papers)

Most Repeated GK MCQs from Past Papers MCQs with Answers & Explanations (Page 45)

Practice verified Most Repeated GK MCQs from Past Papers MCQs with Answers & Explanations for Khuddam-ul-Hujjaj/ Nazims for Hajj (OTS 2027 - Includes All NTS Past Papers) preparation. Featuring solved questions, detailed explanations, and past paper answers (Page 45).

General Information & Trivia  · General Knowledge

3,653 Questions • 2740 Mins Practice • Updated for 2026 Competitive Exams
3653 MCQs
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Solved Questions

3653 Questions
881
Chemical formula of caustic soda (Sodium hydroxide) is:
882
The symbol of the Gold element in the "Periodic Table" is:
883
Isotopes of an element have the same number of:
884
(K₂SO₄·Al₂(SO₄)₃·24H₂O) or Potash alum locally named Phitkari is used for:
885
An endothermic reaction is one in which:
886
Relative atomic mass of Na is:
887
Which one of the following substances is used as a decolorizing agent?
888
Which among the following is not a Noble gas?
889
Relative atomic mass of Hydrogen (H) is:
890
Organic compounds are insoluble in:
891
The spreading of fragrance or scent in air is due to:
892
Which one of the following is a synthetic chemical fertilizer?
893
Evaporation of water in shade is generally:
894
Which one of the following is monoatomic?
895
The pH of a solution having H⁺ ions concentration of 1 × 10⁻⁷ will be:
896
Which one of these is the most widely used nitrogenous fertilizer in Pakistan?
897
If nitrogen is the main element of fertilizers, then fertilizers are classified as:
898
Number of elements present in the 5th period of the Periodic Table is:
899
Two or more atoms combine to form:
900
The bond formed by the transfer of electrons from one atom to another is called: