Multiple choice

Which of the following statements is incorrect?

  1. The acid rain occurs due to the presence of H2SO4 and HNO3.

  2. CO2 released by fossil fuels, burnings of coal/wood, etc is a green house gas.

  3. NH3 reacts with water to form ammonium hydroxide.

  4. Excessive release of CO by incomplete combustion of carbonaceous fuels causes global warming.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This gas causes respiratory problem as it has a strong affinity for haemoglobin.

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