What are the freezing and boiling points of ammonia $(NH_3)$?
- A$198.4 \ K$ and $239.7 \ K$
- B$195.2 \ K$ and $239.7 \ K$
- C$198.4 \ K$ and $273.15 \ K$
- D$195.2 \ K$ and $273.15 \ K$
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