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  • Question
  • Chemical formula for sulphurous acid is:


  • Options
  • A. H2SO4
  • B. H2SO3
  • C. H3SO3
  • D. H3SO4

  • Correct Answer
  • H2SO3 

  • Tags: Bank Exams

    Chemistry problems


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    • 1. In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement". As feared, (differences into) the families pose a hurdle.

    • Options
    • A. difference into
    • B. difference as in
    • C. difference amongst
    • D. No improvement
    • Discuss
    • 2. The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?

    • Options
    • A. Two normal
    • B. One normal
    • C. 0.5 normal
    • D. Four normal
    • Discuss
    • 3. Which one of the following statements is not correct?

    • Options
    • A. The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.
    • B. The television picture tubes are nothing but cathode ray tubes.
    • C. The cathode rays themselves are not visible.
    • D. The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
    • Discuss
    • 4. The chemical properties of an element depend upon

    • Options
    • A. the number of isotopes of the element
    • B. the mass number of the element
    • C. the total number of neutrons in the element
    • D. the number of electrons in the outermost shell of the element
    • Discuss
    • 5. ?Plum Pudding Model? for an atom was proposed by

    • Options
    • A. Antoine Lavoisier
    • B. Robert Boyle
    • C. Ernest Rutherford
    • D. J. J. Thomson
    • Discuss
    • 6. The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its ___________.

    • Options
    • A. Crystallisation
    • B. Crystallisation
    • C. Evaporation
    • D. Evaporation
    • Discuss
    • 7. The substances which have very low ignition temperature and can easily catch fire with a flame are called _____________ substances.

    • Options
    • A. hazardous
    • B. perilous
    • C. incombustible
    • D. inflammable
    • Discuss
    • 8. Kidney stones are composed of ______.

    • Options
    • A. Calcium Oxalate
    • B. Sodium Chloride
    • C. Magnesium Nitrate
    • D. Calcium Bicarbonate
    • Discuss
    • 9. A change in which no new substances are formed is called _____________.

    • Options
    • A. Physical Change
    • B. Chemical Change
    • C. Rusting
    • D. Galvanisation
    • Discuss
    • 10. NaHCO3 is chemical formula for ___________.

    • Options
    • A. Borax
    • B. Vinegar
    • C. Lime
    • D. Baking soda
    • Discuss


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