Which one of the following gives the measure of Organic pollution in water?

Related Mcqs:

1. Ammonium cynanate was 1st Inorganic compound that was converted into an Organic compound (in Lab) through boiling water. The organic compound was____.

   A. Methane
   B. Ethanol
   C. Acetic acid
   D. Urea

   Submitted by: Aamir khan Hullio

2. Which of the following factors help to measure quallity of water ?

   A. DO
   B. BOD
   C. COD
   D. all of the above

3. Which of the following methods is used to estimate hydrogen in an organic compound ?

   A. Combustion method
   B. Dumas method
   C. Kjeldahls method
   D. All of the above methods are for different purposes

4. Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose?

   A. CuSO4
   B. AgNO3
   C. K2MnO4
   D. CH3COOH

   Submitted by: Muhammad Kamal

5. Which one of the following gives white precipitate with aqueous solution of BaCl2?

   A. NaHCO3
   B. NaNO3
   C. Na2CO3
   D. Na2CrO4

6. Which of the following gases when passed through warm dilute solution of H2SO4 in presence of HgSO4 gives acetaldehyde

   A. CH₄
   B. C₂H₆
   C. C₂H₄
   D. C₂H₂

   Submitted by: Aamir khan Hullio

7. In solvent extraction ether is used to separate products of organic synthesis from________________?

   A. water
   B. iodine
   C. hydrochloric acid
   D. gases

8. The organic acid that does not has COOH group is___________________?

   A. phthalic acid
   B. carbolic acid
   C. Maleic acid
   D. Succinic acid

9. The organic acid that can be made from ethanol is_________________?

   A. Acetic acid
   B. Formic acid
   C. Butanoic acid
   D. Citric acid

10. The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?

    A. Distillation
    B. Extraction
    C. Gas chromatography
    D. Column chromatography

    Submitted by: Muhammad Ali Kunbhar