Chemistry Basics Quiz 4
Practice quiz on Chemistry Basics (General Science). 5 real exam questions.
About This Quiz
Chemistry Basics Quiz 4 — 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.The chemical symbol 'Fe' stands for which element?
- A.Fluorine
- B.Iron
- C.Fermium
- D.Francium
Show answer
Answer: B. Iron
Fe is the symbol for Iron.
Q2.What is H2O?
- A.Salt
- B.Hydrogen
- C.Water
- D.Oxygen
Show answer
Answer: C. Water
H2O is chemical name of water.
Q3.The main gas in the air is:
- A.Oxygen
- B.Nitrogen
- C.Carbon dioxide
- D.Hydrogen
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Answer: B. Nitrogen
Air contains ~78% nitrogen.
Q4.Which gas is used in refrigerators?
- A.Oxygen
- B.Chlorofluorocarbons
- C.Hydrogen
- D.Methane
Show answer
Answer: B. Chlorofluorocarbons
CFCs were widely used (now phased out).
Q5.Chemical symbol of Oxygen?
- A.O
- B.Ox
- C.Oy
- D.Om
Show answer
Answer: A. O
O.
Frequently Asked Questions
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Chemistry Basics Quiz 4 runs on a 1-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
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Can I attempt Chemistry Basics Quiz 4 multiple times?
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.