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  • Question
  • In a compound the elements are always present in definite proportions by ______


  • Options
  • A. mass
  • B. volume
  • C. size
  • D. No option is correct

  • Correct Answer
  • mass 


  • Chemistry problems


    Search Results


    • 1. Which element is generally No Radioactive?

    • Options
    • A. Thorium
    • B. Polonium
    • C. Germanium
    • D. Plutonium
    • Discuss
    • 2. ....... is the property of attracting electrons by the halogen atoms in a molecule

    • Options
    • A. Electron affinity
    • B. Electro positivity
    • C. Electro chemistry
    • D. Electro negativity
    • Discuss
    • 3. Soft drinks contain:

    • Options
    • A. Oxalic acid
    • B. Tartaric acid
    • C. Carbonic acid
    • D. Citric acid
    • Discuss
    • 4. Which of the following gases is not generated in a biogas plant?

    • Options
    • A. H2S
    • B. CO2
    • C. CH4
    • D. CO
    • Discuss
    • 5. An ? particle is _____.

    • Options
    • A. A hydrogen molecule
    • B. A helium nucleus
    • C. An atom of hydrogen
    • D. A proton
    • Discuss
    • 6. Which is the heaviest metal among the following?

    • Options
    • A. Gold
    • B. Silver
    • C. Iron
    • D. Copper
    • Discuss
    • 7. Nitrification is the biological process of converting

    • Options
    • A. N2 into nitrate
    • B. N2 into nitrite
    • C. Ammonia into nitrite
    • D. Ammonia into N2
    • Discuss
    • 8. Vinegar is __________ .

    • Options
    • A. diluted acetic acid
    • B. glacial acetic acid
    • C. glacial formic acid
    • D. diluted formic acid
    • Discuss
    • 9. Which of the following statement(s) is/are CORRECT?

    • Options
    • A. Oxides of non-metals are basic
    • B. Oxides of non-metals are acidic
    • C. Oxides of metals are acidic
    • D. All options are correct
    • Discuss
    • 10. What is the natural source of Oxalic acid?

    • Options
    • A. Tomato
    • B. Sour milk
    • C. Ant sting
    • D. Tamarind
    • Discuss


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