Question

1. Find the odd one out.

H20 , NH3 , O2 , CO2 .​

Answer 1

Answer:

NH3

Explanation:

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Answer 2

NH3 is an odd man out

Explanation:

• H20 - Water (chemical formula H2O) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms.
• NH3 - Ammonia is a compound of nitrogen and hydrogen with the formula NH3. A stable binary hydride, and the simplest hydride, ammonia is a colour less gas with a distinct pungent smell.

• O2 - Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
• Co2 - Carbon dioxide (chemical formula CO 2) is an acidic colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms.

H20,O2,Co2 these are all oxides. NH3 is a chemical compound, so NH3 is a odd man out.