Newspaper can be recycled again and again how many times ?

Related Mcqs:

1. Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be_______________?

   A. 16 gmol-1 B. 32 gmol-1 C. 48 gmol-1 D. 64 gmol-1...

2. For a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?

   A. 3P B. P/3 C. 3P/T D. 6P Submitted by: Muhammad Ali Kunbhar...

3. Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?

   A. NH2Cl B. NHCI2 C. NCI2 D. all of the above...

4. Acid present in acid rain may be__________________?

   A. H2SO4 B. HNO3 C. both A and B D. none...

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

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

6. Which substance can be used for disinfecting water ?

   A. KMnO4 B. Alums C. Ozone D. All...

7. Which of the following is not a heavy industry ?

   A. iron B. fertilizer C. paper D. none...

8. Requirement of macronutrient per acre of the land is_________________?

   A. 5 to 200 kg B. 20-200 kg C. 200-400 kg D. 30-400 kg...

9. 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...

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

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