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  • Question

  • The formula C6H5-CO-CH3 represents


  • Options
  • A. Acetone
  • B. Acetic acid
  • C. Acetophenone
  • D. Phenyl acetate

  • Correct Answer
  • Acetophenone 

    • Chemistry problems

    Search Results

    • 1. The Latin word formica means ant. The name formic acid is derived from this Latin word because

    • Options
    • A. this acid, in ancient times, was used to eliminate ant-hills
    • B. this corrosive acid is secreted by ants to drive away their enemies
    • C. this acid was first obtained by the distillation of ants
    • D. ants are attracted by the odour of this acid
      • Discuss
    • 2. Zone refining is used for the purification of

    • Options
    • A. Au
    • B. Ge
    • C. Ag
    • D. Cu
      • Discuss
    • 3. The heat required to raise the temperature of body by 1 K is called

    • Options
    • A. specific heat
    • B. thermal capacity
    • C. water equivalent
    • D. None of the above
      • Discuss
    • 4. The metallurgical process in which a metal is obtained in a fused state is called

    • Options
    • A. smelting
    • B. roasting
    • C. calcinations
    • D. froth floatation
      • Discuss
    • 5. The main chemical constituent of clay is

    • Options
    • A. silicon oxide
    • B. aluminium borosilicate
    • C. zeolites
    • D. aluminium silicate
      • Discuss
    • 6. The mass number of a nucleus is

    • Options
    • A. always less than its atomic number
    • B. the sum of the number of protons and neutrons present in the nucleus
    • C. always more than the atomic weight
    • D. a fraction
      • Discuss
    • 7. The maximum number of isomers for an alkene with molecular formula C4H8 is

    • Options
    • A. 5
    • B. 4
    • C. 2
    • D. 3
      • Discuss
    • 8. The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

    • Options
    • A. 1/6
    • B. 1/3
    • C. 1/8
    • D. 1/4
      • Discuss
    • 9. The metal that is usually extracted from sea water is

    • Options
    • A. Ca
    • B. Na
    • C. K
    • D. Mg
      • Discuss
    • 10. Which of the following drainage systems fall into Bay of Bengal?

    • Options
    • A. Ganga, Brahmaputra and Godavari
    • B. Mahanadi, Krishna and Cauvery
    • C. Luni, Narnada and Tapti
    • D. Both (a) and (b)
      • Discuss

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