RRB GROUP D Chemistry Quiz - 63

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Question 1:

Which one among the following is the major constituent of Pyrex glass?

Question 2:

The presence of sulphur in gun powder -

Question 3:

Malachite is used as a pigments in paints to obtain

Question 4:

__________ is essential for the survival of fish and other aquatic organisms.

Question 5:

Which of the following metals is present in high concentration in the body of fishes?

Question 6:

Which of the following atmospheric layer is used in the long distance communications?

Question 7:

Blue baby syndrome diseases is caused when concentration of nitrate ion is greater than

Question 8:

Which of the following plants help to control photochemical smog?

Question 9:

The most harmful air pollutant produced due to air pollution is

Question 10:

Photochemical smog has high concentration of oxidizing agents. It occurs in

  1. Warm climate
  2. Dry climate
  3. Cool climate
  4. Sunny climate