Are you feeling anxious about tackling Chemistry-related competitive exams? Fret not; we’ve got your back with our Chemistry Quiz. In this post, we’ll delve into Chemistry General Knowledge Questions and Answers that will aid you in facing competitive exams with confidence. The Chemistry Online Test includes questions spanning various difficulty levels, catering to those tired of memorizing formulas and chemical expressions.
Chemistry Quiz Details
Quiz Overview
| Quiz Name | Chemistry |
|---|---|
| Category | GK Quiz |
| Number of Questions | 25 |
| Time | 30 Minutes |
| Exam Type | MCQ (Multiple Choice Questions) |
Now, let’s kick off the Chemistry Quiz.
Chemistry Questions and Answers
1. Lightest Noble Gas
Question: Which of the following is the lightest noble gas?
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A) Helium
B) Neon
C) Argon
D) Krypton
Answer: A) Helium
Explanation: Helium, with an atomic number of 2, is the lightest noble gas.
2. Greenhouse Gas
Question: Which of the following is not a greenhouse gas?
A) Carbon dioxide
B) Methane
C) Oxygen
D) Water vapor
Answer: C) Oxygen
Explanation: Oxygen is not a greenhouse gas as it doesn’t absorb and emit radiation in the infrared range.
3. Types of Chemical Bond
Question: Which of the following is not a type of chemical bond?
A) Covalent bond
B) Ionic bond
C) Metallic bond
D) Mechanical bond
Answer: D) Mechanical bond
Explanation: Mechanical bond isn’t a chemical bond but a result of interlocking shapes of molecules.
4. Chemical Formula for Table Salt
Question: What is the chemical formula for table salt?
A) NaCl
B) HCl
C) NaOH
D) H2SO4
Answer: A) NaCl
Explanation: Table salt’s chemical formula is NaCl, representing sodium chloride.
5. pH of Pure Water
Question: What is the pH of pure water at room temperature?
A) 7
B) 10
C) 14
D) 0
Answer: A) 7
Explanation: Pure water at room temperature has a neutral pH of 7.
6. Metalloid Element
Question: Which of the following elements is a metalloid?
A) Aluminum
B) Silicon
C) Iron
D) Sodium
Answer: B) Silicon
Explanation: Silicon is a metalloid, exhibiting properties of both metals and non-metals.
7. Main Component of Natural Gas
Question: What is the main component of natural gas?
A) Methane
B) Ethane
C) Propane
D) Butane
Answer: A) Methane
Explanation: Methane constitutes over 90% of natural gas.
8. Chemical Symbol for Gold
Question: What is the chemical symbol for gold?
A) Ag
B) Au
C) Cu
D) Fe
Answer: B) Au
Explanation: The chemical symbol for gold is Au, derived from the Latin word “aurum.”
9. Solid to Gas Process
Question: What is the process by which a solid changes directly to a gas?
A) Melting
B) Boiling
C) Sublimation
D) Condensation
Answer: C) Sublimation
Explanation: Sublimation is the direct change from solid to gas, bypassing the liquid state.
10. Non-Metal Element
Question: Which of the following is a non-metal?
A) Sodium
B) Iron
C) Oxygen
D) Copper
Answer: C) Oxygen
Explanation: Oxygen is a non-metal, lacking metallic properties like luster and ductility.
11. Strong Acid
Question: Which of the following is a strong acid?
A) Acetic acid
B) Hydrochloric acid
C) Citric acid
D) Carbonic acid
Answer: B) Hydrochloric acid
Explanation: Hydrochloric acid is a strong acid, fully dissociating in water to form H+ ions.
12. SI Unit of Pressure
Question: What is the SI unit of pressure?
A) Pascal
B) Newton
C) Joule
D) Watt
Answer: A) Pascal
Explanation: The SI unit of pressure is the pascal, defined as one newton per square meter.
13. Photosynthesis Process
Question: What is the process by which plants convert sunlight into chemical energy?
Answer: Photosynthesis
Explanation: Photosynthesis is the process by which plants convert sunlight into chemical energy.
14. Lewis Acid Example
Question: Which of the following compounds is an example of a Lewis acid?
A) H2O
B) NaCl
C) AlCl3
D) NH3
Answer: C) AlCl3
Explanation: AlCl3 is a Lewis acid, capable of accepting a pair of electrons to form a covalent bond.
15. Non-Colligative Property
Question: Which of the following is NOT a colligative property?
A) Vapor pressure lowering
B) Freezing point depression
C) Boiling point elevation
D) Density
Answer: D) Density
Explanation: Density is not a colligative property; the others depend on the number of solute particles.
16. pH Calculation
Question: What is the pH of a solution with a hydrogen ion concentration of 10^-5 M?
Answer: A) 5
Explanation: pH = -log(10^-5) = 5.
17. Redox Reaction
Question: Which of the following is an example of a redox reaction?
A) 2Na + Cl2 → 2NaCl
B) HCl + NaOH → NaCl + H2O
C) Fe + CuSO4 → FeSO4 + Cu
D) CH4 + 2O2 → CO2 + 2H2O
Answer: C) Fe + CuSO4 → FeSO4 + Cu
Explanation: A redox reaction involves oxidation and reduction; this reaction showcases both.
18. Property of Nonmetals
Question: What is a property of nonmetals?
A) Good conductors of electricity
B) Malleable and ductile
C) Tend to form cations
D) Brittle and non-ductile
Answer: D) Brittle and non-ductile
Explanation: Nonmetals are generally brittle, non-ductile, and tend to form anions.
19. Pure Substance
Question: Which of the following is a pure substance?
A) Mixture
B) Compound
C) Solution
D) Element
Answer: D) Element
Explanation: An element is a pure substance with a fixed composition and properties.
20. pH of Neutral Solution
Question: What is the pH of a neutral solution?
Answer: B) 7
Explanation: A neutral solution has a pH of 7 on the pH scale.
21. Exothermic Reaction
Question: Which of the following is an example of an exothermic reaction?
A) Ice melting
B) Photosynthesis
C) Burning of wood
D) Mixing of acids
Answer: C) Burning of wood
Explanation: Burning wood is an exothermic reaction, releasing heat and light.
22. Physical vs. Chemical Change
Question: What is the difference between a physical change and a chemical change?
Answer: B) Chemical changes involve a change in chemical composition, while physical changes do not.
Explanation: Chemical changes alter chemical composition, whereas physical changes impact physical properties.
23. Chemical Formula for Water
Question: What is the chemical formula for water?
Answer: D) H2O
Explanation: Water’s chemical formula is H2O, consisting of two hydrogen and one oxygen atom.
After the Chemistry Quiz
After completing the Chemistry Quiz, review the Chemistry GK Questions and Answers to rectify mistakes. This quiz aids in preparing for competitive exams like EAMCET, JEE-MAINS, NEET, and others. The provided Chemistry General Knowledge Questions assist candidates in self-assessment, ensuring a natural improvement in knowledge.
Benefits of Practicing Chemistry Quiz
- Time Management: The timer displayed helps you manage time effectively during the quiz.
- Detailed Explanations: Answers come with explanations, allowing you to understand and rectify mistakes.
- Progress Tracking: The status bar indicates the number of questions completed, aiding in tracking progress.
Chemistry Quiz Results
Results are displayed post the Chemistry Online Test submission, accompanied by explanations for each question. Evaluate yourself, rectify mistakes, and use Chemistry General Knowledge Questions and Answers to enhance your exam preparation.
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