Which of the following gases are poisonous [Pb. PMT 2000]

1.	Which of the following gases are poisonous [Pb. PMT 2000]
A.	\[CHC{{l}_{3}}\]
B.	\[C{{O}_{2}}\]
C.	None of these
D.	\[CO\]
Answer» E.

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Which of the following gases are poisonous [Pb. PMT 2000]

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