Which of the following statements about polar stratosphere clouds (PSCs) is not correct?
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.
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.
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