Chemistry Elements of Biological importance Test Online Mcqs Preparation

Chemistry Elements of Biological importance Test Online Mcqs Preparation With Answers Start Below

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Question 1 of 15

1. In Contact process for the manufacture of sulfuric acid, the most important reaction occurs in the catalyst chamber. Which set of the reactants and the catalyst are correct
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. Final step in the nitric acid production is:
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. In Harber’s process maximum ammonia can be achieved by reducing temperature, but on contrary we maintain high temperature of 400°C because
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. The nitrogen present in some fertilizers helps plants:
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Which of the following occurs in Contact process:
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Acid rain
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. When we mix SO3 with conc. H2SO4 in contact process, the product obtained is:
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. Acid rain can be due to the absorption of:
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The temperature at which nitrogen oxidized to NO during HNO3 production is:
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. Which of the following step is not involved in NH4NO3 manufacturing
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. For plants to grow well they need soils which contain compounds of:
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. Nitric acid is prepared commercially by:
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. In contact process SO3 manufacturing is favour at low temperature but in actual practice the reaction is carried out at 400-600°C the reason is that:
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. During the manufacture of ammonia by Haber’s process, a high yield is favoured by high pressure and low temperature. However, in practice, a high temperature of 450°C is employed because:
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. Which of the following is not primary pollutant?
A.
B.
C.
D.

Question 15 of 15


 

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