Chemistry Basics Quiz
Practice quiz on Chemistry Basics (General Science). 5 real exam questions.
About This Quiz
Chemistry Basics Quiz — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.What is the chemical formula of bleaching powder?
- A.CaCO₃
- B.CaOCl₂
- C.CaCl₂
- D.CaSO₄
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Answer: B. CaOCl₂
Bleaching powder = Calcium oxychloride.
Q2.The chemical formula of common salt is:
- A.NaCl
- B.KCl
- C.CaCl2
- D.MgCl
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Answer: A. NaCl
NaCl = Sodium Chloride.
Q3.The hardest natural substance found on Earth is:
- A.Iron
- B.Diamond
- C.Gold
- D.Silver
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Answer: B. Diamond
Diamond is the hardest natural material.
Q4.The chemical formula of washing soda is:
- A.NaHCO₃
- B.Na₂CO₃·10H₂O
- C.CaCO₃
- D.K₂CO₃
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Answer: B. Na₂CO₃·10H₂O
Washing soda is sodium carbonate decahydrate.
Q5.The pH value of pure water is:
- A.3
- B.5
- C.7
- D.9
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Answer: C. 7
Pure water is neutral.
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Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Chemistry Basics questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.