The Lewis acids are__________________?

Related Mcqs:

1. Nucleic acids were first demonstrated in_________________?

   A. Pus cells
   B. Sperm heads
   C. 1872
   D. all of the above

2. Nucleic acids direct the synthesis of__________________?

   A. Glucose
   B. Triglycerides
   C. Proteins
   D. All

3. The test which is used for the identification of amino-acids is_________________?

   A. Ninhydrin test
   B. Molisch test
   C. Biuretic test
   D. Benedict test

4. Essential amino acids are___________________?

   A. 5
   B. 10
   C. 15
   D. 20

5. Acidic amino acids have________________?

   A. 2 amino groups and 1 carboxylic group
   B. 1 amino and 1 carboxylic groups
   C. 2 carboxylic groups and 1 amino group
   D. 2 amino and 2 carboxylic groups

6. Which one of the following acids is present in lemon juice ?

   A. Citric acid
   B. Benzoic acid
   C. Tartaric acid
   D. Oxalic acid

7. The aliphatic monocarboxylic acids are obtained by the hydrolysis of________________?

   A. proteins and oild
   B. fats and proteins
   C. fats and oils
   D. all above

8. The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

   A. esterification
   B. neutralization
   C. hydrolysis
   D. saponification

9. The molar mass of an organic acids is determined by____________?

   A. Depression of freezing point
   B. Volumetric method
   C. Victor Meyer’s method
   D. Osmosis method

   Submitted by: Muhammad Ali Kunbhar

10. Amino acids are a product of the digestion of: ___________?

    A. Carbohydrates
    B. Fats
    C. Proteins
    D. Vitamins

    Submitted by: Abdullah & Abdul Samad