Home / General Knowledge / Chemistry :: section-16

General Knowledge :: Chemistry

  1. The metal ion present in Vitamin B12 is

  2. A.

     Nickel

    B.

     Cobalt

    C.

     Iron

    D.

     Zinc

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. The metal present in vitamin B12 is

  4. A.

     Fe

    B.

     Co

    C.

     Mg

    D.

     Mo

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Which of the following is not present in RNA

  6. A.

     Thymine

    B.

     Uracil

    C.

     Ribose

    D.

     Phosphate

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The enzyme that converts glucose to ethyl alcohol is :

  8. A.

     Invertase

    B.

     Maltase

    C.

     Zymase

    D.

     Diastase

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

  10. A.

     Amino phenyl alanine

    B.

     Hydroxy phenyl alanine

    C.

     Phenyl alanine

    D.

     Dihydroxy phenyl alanine

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. During fermentation of sugar, the compound which is always formed is :

  12. A.

     Methyl Alcohol

    B.

     Ethyl Alcohol

    C.

     Acetic Acid

    D.

     Ethylene

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. If a buffer solution is diluted its pH

  14. A.

     Is increased

    B.

     Remains same

    C.

     Is decreased

    D.

     Will slowly increase and then it will decrease

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. 'Vinegar' is a commercial name of

  16. A.

     Oxalic acid

    B.

     Hydrochloric acid

    C.

     Acetic acid

    D.

     Citric acid

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. The apparatus used to test acidity of aqueous solution is

  18. A.

     PH meter

    B.

     Ammeter

    C.

     Hygrometer

    D.

     Acidmeter

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Which one of the following organic compound is used to remove stains of iron compounds?

  20. A.

     Oxalic acid

    B.

     Benzoic acid

    C.

     Phthalic acid

    D.

     Cinnamic acid

    View Answer

    Workspace

    Discuss Discuss in Forum