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Unit of ozone is:
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Depletion of ozone is more during the month:
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A single free chlorine radical can destroy ozone molecules upto:
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How much pesticides have been synthesized at present?
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Forms of waste products:
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Contamination of water of tanning industries is due to:
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Factors affecting quality of water:
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BOD is the oxygen demand within day(s):
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Water is purified by the process:
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Which is used as a coagulant:
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Chloroform is carcinogenic:
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Newspaper can be recycled again and again by how many times?
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The temperature in the incineration process has a range:
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In purification of potable water the coagulate used is:
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The main pollutant of leather tanneries in the waste water is due to the salt of:
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DDT is a:
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Fungicides are the pesticides which:
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A single chloride free radical can destroy how many ozone molecules?
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The range of UV-B is
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Peroxyacetyl Nitrate (PAN) is an irritant to human beings and it affects:
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The pH range of the acid rain is:
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Which one of the following is the oxidation number of iodine in $\rm{I_{2}}$?
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Highest oxidation state of chlorine is
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Oxidation state of P in $\rm{Mg_{2}P_{3}O_{5} } $ is
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The co-efficient with $\rm{HCl}$ after balancing the following equation is $\rm{K_{2}CrO_{4}+HCl \,\rightarrow \, KCl+2CrCl_{3}+Cl_{2}+H_{2}O } $
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