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  • Question
  • Which one of the following gases dissolves in water to give acidic solution?


  • Options
  • A. Carbon dioxide
  • B. Oxygen
  • C. Nitrogen
  • D. Hydrogen

  • Correct Answer
  • Carbon dioxide 

    Explanation

    Carbon dioxide (CO2) gas dissolved in water can cause water to become acidic.The acidity of water from dissolved CO2 can be reduced by a base such as baking soda (sodium bicarbonate).

  • Tags: Bank Exams

    Chemistry problems


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    • 1. Which one of the following elements is used as a timekeeper in atomic clocks?

    • Options
    • A. Potassium
    • B. Caesium
    • C. Calcium
    • D. Magnesium
    • Discuss
    • 2. Which of the following is a commercial source of energy?

    • Options
    • A. Agricultural waste
    • B. Dried dung
    • C. Sun
    • D. Natural gas
    • Discuss
    • 3. When Granite rocks get metamorphosed, they form

    • Options
    • A. Quartzite
    • B. Gneiss
    • C. Marble
    • D. Slate
    • Discuss
    • 4. Besides CO2, the other green house gas is

    • Options
    • A. CH4
    • B. N2
    • C. Ar
    • D. O2
    • Discuss
    • 5. Process of gaining electrons is known as _____.

    • Options
    • A. oxidation
    • B. reduction
    • C. radiation
    • D. both oxidation and reduction
    • Discuss
    • 6. Consider the following chemical reaction : aFe2O3(s) + bCO(g) + cFe(s) + dCO2 In the balanced chemical equation of the above, which of the following will be the values of the coefficients a, b, c and d respectively?

    • Options
    • A. 3, 2, 3, 1
    • B. 1, 3, 2, 3
    • C. 2, 3, 3, 1
    • D. 3, 3, 2, 1
    • Discuss
    • 7. Why is argon gas used along with tungsten wire in an electric bulb?

    • Options
    • A. To increase the life of the bulb
    • B. To reduce the consumption of electricity
    • C. To make the emitted light colored
    • D. To reduce the cost of the bulb
    • Discuss
    • 8. Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (fc)?

    • Options
    • A. These are two independent temperature scales
    • B. T = tc
    • C. T = tc - 273.15
    • D. T = tc + 273.15
    • Discuss
    • 9. Which one of the following is not a characteristic of a compound?

    • Options
    • A. Composition is variable.
    • B. All particles of compound are of only one type.
    • C. Particles of compound have two or more elements.
    • D. Its constituents cannot be separated by simple physical methods.
    • Discuss
    • 10. Which of the following substances cause temporary hardness in water? 1. Mg(HCO3)2 2. Ca(HCO3)2 3. CaCl2 4. MgSO4

    • Options
    • A. 3 and 4
    • B. 2and 3
    • C. 1 and 4
    • D. 1 and 2
    • Discuss


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