Which of the following are pure substances? 1. Steam and water mixture in a container 2. Atmospheric air 3. Air and liquid air in a container 4. Gaseous combustion products Select the correct answer using the codes given below: Codes:

Which of the following are pure substances? 1. Steam and water mixture

1.	Which of the following are pure substances? 1. Steam and water mixture in a container 2. Atmospheric air 3. Air and liquid air in a container 4. Gaseous combustion products Select the correct answer using the codes given below: Codes:
A.	1, 2 and 3 and 4
B.	2, 3 and 4
C.	1, 3 and 4
D.	1, 2 and 4
Answer» B. 2, 3 and 4

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Which of the following are pure substances? 1. Steam and water mixture in a container 2. Atmospheric air 3. Air and liquid air in a container 4. Gaseous combustion products Select the correct answer using the codes given below: Codes:

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