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20/03/2022 9:01 pm
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Which of the following statements about polar stratosphere clouds (PSCs) is not correct?
(a) PSCs do not react with chlorine nitrate and HCl.
(b) Type I clouds are formed at about -77ºC and contain solid HNO3.3H2O.
(c) Type II clouds are formed at about –85ºC and contain some ice.
(d) A tight whirlpool of wind called Polar Vortex is formed which surrounds Antarctica.
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20/03/2022 9:03 pm
Correct answer: (a) PSCs do not react with chlorine nitrate and HCl.
Explanation:
PSCs react with chlorine nitrate and HCl to give HOCl and Cl2.