Puducherry PSC · General Studies · General Science
Elements, compounds, acids, bases, salts and reactions.
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Q1 · Chemistry · EASY
Which gas is most abundant in Earth's atmosphere?
Q2 · Chemistry · MEDIUM
What is the pH value of a neutral solution at 25°C?
Q3 · Chemistry · HARD
Which law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass?