CHEMISTRY MCQS 06

Chemistry MCQs are a key component of every scientific and competitive exam. This subject bridges theory with real-world applications—helping students understand the behavior of matter, energy transformations, reactions, and compounds. Whether you’re revising for an entry test or brushing up on general science, these multiple-choice questions provide structured, concept-based practice.

Our carefully crafted set includes questions from general, physical, organic, and inorganic chemistry. Each MCQ is designed to reinforce conceptual clarity, test analytical thinking, and improve problem-solving speed. By practicing regularly, you not only memorize formulas but also learn to apply chemical logic — a crucial skill in competitive exams and research-based learning.

Why Choose Us

Exam-Oriented Coverage: Includes frequently asked questions from PPSC, FPSC, and NTS.
Balanced Difficulty: From fundamental definitions to complex reaction mechanisms.
Updated Content: Based on the latest syllabi and scientific advancements.
Smart Revision Format: MCQs organized topic-wise for efficient learning.
Reliable Source: Prepared by subject experts for accuracy and exam relevance.

FAQs

Q1. What topics are included in Chemistry MCQs?
Atomic structure, bonding, acids and bases, periodic trends, organic chemistry, and thermodynamics.

Q2. Are these MCQs suitable for MDCAT or ECAT?
Yes, the questions are aligned with entry and competitive test standards.

Q3. Do the MCQs include answers?
Yes, each question includes an accurate answer for self-assessment.

Conclusion

Mastering Chemistry requires consistent practice and conceptual understanding. These MCQs make revision engaging and effective — ensuring students grasp theoretical principles and their practical implications. With this comprehensive set, you’ll be ready for any chemistry-related exam, quiz, or interview with confidence.

Which element is used in making semiconductors? Iron SiliconAluminum CopperB) Silicon Silicon is widely used in semiconductors.

Which gas is produced when metals react with acid? Oxygen Hydrogen Carbon dioxideNitrogenB) Hydrogen Metals + acid → salt + hydrogen gas.

The main component of natural gas is:MethanePropaneButaneEthaneA) MethaneNatural gas is mainly methane.

Which of these is a reducing agent?OxygenHydrogen Carbon dioxideNitrogenB) Hydrogen Hydrogen reduces other substances.

Which gas is used in electric bulbs? Neon ArgonHydrogen HeliumB) ArgonArgon prevents filament oxidation.

Which is the main component of glass? Silicon dioxide Calcium carbonate Sodium chloride Magnesium oxideA) Silicon dioxideGlass is made from silica.

Which element burns with a dazzling white flame? MagnesiumCopper Zinc IronA) MagnesiumMagnesium burns bright white.

Which is the hardest metal? GoldIron TungstenSilverC) TungstenTungsten has the highest hardness and melting point.

The chemical name of laughing gas is:Nitrous oxideNitric oxideNitrogen dioxideNitrogen pentoxideA) Nitrous oxide N2O is laughing gas.

Which gas turns moist red litmus blue?Ammonia HydrogenOxygenCarbon dioxide A) AmmoniaAmmonia is alkaline and turns red litmus blue.

Which metal is liquid at room temperature?Mercury Lead ZincAluminum A) MercuryMercury is the only metal that is liquid at room temperature.

What is the chemical formula of baking soda? NaCl NaOH NaHCO3Na2CO3C) NaHCO3 Baking soda is sodium bicarbonate (NaHCO3).

Which acid is present in vinegar? Formic acid Citric acidAcetic acidHydrochloric acidC) Acetic acid: Vinegar contains acetic acid.

Which metal is used in thermometers? IronMercury Copper Lead: B) Mercury Mercury is used because it expands uniformly with temperature.

Which element is known as quicksilver? Silver Platinum MercuryLeadC) Mercury Mercury is also called quicksilver.

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