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Chemistry (Periodic Table & Reactions)

Periodic table trends, chemical bonding, acids-bases-salts, and types of chemical reactions

Sample Practice Questions

  1. What is the Tyndall effect?

    • Brownian motion in colloids
    • Scattering of light by colloidal particles
    • Formation of precipitates
    • Diffusion in solutions
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    Answer: Scattering of light by colloidal particles

  2. Which gas is responsible for the greenhouse effect primarily?

    • Nitrogen
    • Oxygen
    • Carbon dioxide
    • Argon
    Show answer

    Answer: Carbon dioxide

  3. In the modern periodic table, elements are arranged by increasing?

    • Atomic mass
    • Atomic number
    • Valency
    • Reactivity
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    Answer: Atomic number

  4. Which group of the periodic table contains the noble gases?

    • Group 1
    • Group 2
    • Group 17
    • Group 18
    Show answer

    Answer: Group 18

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Practice Questions

Practise NSTSE questions on Chemistry (Periodic Table & Reactions). Answers are revealed after each question.

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