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Chemistry

General chemistry topics.

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  • Q1 · Chemistry · EASY

    Which of the following is the chemical formula for common salt?

  • Q2 · Chemistry · EASY

    The pH value of pure water at 25 degrees Celsius is:

  • Q3 · Chemistry · MEDIUM

    Which gas is produced when zinc metal reacts with dilute hydrochloric acid?

  • Q4 · Chemistry · MEDIUM

    Which of the following elements is a liquid at room temperature?

  • Q5 · Chemistry · MEDIUM

    What is the valency of carbon in methane (CH4)?

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