Hamad Environmental Chemistry 29/03/2020 A. chromium III B. chromium IV C. chromium V D. chromium VI Related Mcqs: 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... Acid present in acid rain may be__________________?A. H2SO4 B. HNO3 C. both A and B D. none... Which statement is wrong ?A. the amount of ozone layer is greater in the region close to the equator B. ozone acts as filter for UV radiations C. in the equatorial region it acts as pollutant D. CFCs play effective role in removing O3 in the stratosphere... The yellow colour in photochemical smog is due to presence of__________________?A. dinitrogen oxide B. nitrogen dioxide C. chlorine gas D. chlorine dioxide... Which of the following is not primary pollutant__________________?A. SO3 B. CO C. NO D. H2SO4...
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