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P BLOCK ELEMENTS
Question #41278
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Question
Which of the following is NOT a method for preparing chlorine gas in the laboratory?
A. Heating MnO2 with concentrated HCl
B. Heating sodium chloride with concentrated sulfuric acid alone.
C. Reacting KMnO4 with HCl
D. Heating MnO2, NaCl, and concentrated H2SO4 together
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