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GK Questions & Answers on Science: Chemistry Terminology (Set 5)

24-JUN-2016 16:05

    Questions and Answers on Science: Chemistry Terminology (Set 5) consists of 10 MCQ to learn and understand various definitions used in chemical reactions & phenomena’s which are important for various competitive examinations like IAS, PSC, SSC, Railway etc.

    1. A reaction that has both oxidation and reduction, is called:

    A. Redox reaction

    B. Decomposition reaction

    C. Synthesis reaction

    D. Double displacement reaction

    Ans. A

    2. The solid that gets dissolved in a solution is called:

    A. Solvent

    B. Sol

    C. Solute

    D. None of the above

    Ans. C

    3. When a solid can change directly into gas, it is called:

    A. Boiling

    B. Condensation

    C. Sublimation

    D. Evaporation

    Ans. C

    4. The measurement of how much molecules on a liquid tend to stick to each other is called:

    A. Suspension

    B. Synthesis

    C. Surface Tension

    D. Transition State

    Ans. C

    5. The elements in group 17 of a periodic table are called:

    A. Halogens

    B. Zerovalent

    C. Transition elements

    D. Actinide series

    Ans. A

    6. When two substances don’t dissolve they are called:

    A. Solute

    B. Solvent

    C. Immiscible

    D. Solution

    Ans. C

    7. A substance that slows down chemical reaction is called:

    A. Inhibitor

    B. Ketone

    C. Kelvin

    D. Nuclear reaction

    Ans. A

    8. The number of moles of solute per kilogram of solvent in a solution is called:

    A. Molar mass

    B. Molar Volume

    C. Molality

    D. Molarity

    Ans. C

    9. When the concentration of acid is determined by neutralising it, is called:

    A. Transition state

    B. Theoretical yield

    C. Titration

    D. Thermodynamics

    Ans. A

    10. The outermost electrons in an atom are called:

    A. Valence electrons

    B. Valency

    C. Neutrons

    D. Protons

    Ans. A

    Click here to study A complete syllabus of Chemistry in detail.

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