The main contributor to toxicity of detergent:

Related Mcqs:

1. The main pollutant of leather tanneries in the waste water is____________________?

   A. chromium III
   B. chromium IV
   C. chromium V
   D. chromium VI

2. The main product of bacterial action is_________________?

   A. Nox
   B. NO2
   C. N2O3
   D. NO

3. Which of the following gases is the main cause of acid rain ?

   A. CO
   B. NO2
   C. both a & b
   D. none of the above

4. Alkanes containing a methyl group on main chain at 2nd carbon are called________________?

   A. iso-alkane
   B. normal-alkane
   C. neo-alkane
   D. branched-alkane

5. The main buffer system of the human blood is____________?

   A. H₂CO₃ – HCO₃
   B. H₂CO₃ – CO₃^2-
   C. CH₃COOH – CH₃COO^–
   D. NH₂CONH₂ – NH₂CONH⁺

   Submitted by: Muhammad Ali Kunbhar

6. Main use of salt in diet is to : ___________?

   A. ease the process of cooking
   B. increase the taste
   C. produce small amount of hydrochloric acid required for digestion
   D. inclease solubility of food particles in water

   Submitted by: Abid Hussain

7. The number of isotopes of elements with even mass number and even atomic number are ________________?

   A. 280
   B. 300
   C. 154
   D. 54

8. Dempsters mass spectrometer has number of zones / parts_________________?

   A. 5
   B. 4
   C. 3
   D. 2

9. One fathom is equal to:__________?

   A. 6 feet
   B. 6 meters
   C. 60 feet
   D. 100 cm

   Submitted by: Fahad Mehsud

10. The maximum mass is present in 1dm3 for the following gas at STP.

    A. C₃H₈
    B. CO₂
    C. CO
    D. CS₂

    Submitted by: Aamir khan Hullio