Answer:
C6H6 - organic compound
K - element
Cl2 - inorganic elemental molecule
SO2 - inorganic compound
Explanation:
An organic compound contains carbon and hydrogen bonded covalently . Sometimes other atoms aside from carbon and hydrogen called heteroatoms are also found in organic compounds. C6H6 is an organic compound.
Elements are found in periodic table. They always occur in uncombined state. K is an element.
Cl2 is an inorganic elemental molecule containing two chlorine atoms bonded covalently.
SO2 is an inorganic compound composed of sulphur and oxygen bound covalently. Mnay inorganic compounds do not contain carbon
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Unicellular organisms are organisms that are made up of one cell only. This is usually the case for bacteria like Ecoli and otherwise known as prokaryotic cell. Multicellular organism are organisms that are made up of more than one cell and there are many such as humans, animals and plants aka eukaryotic cells. There are exceptions such as eukaryotic cells being unicellular such as amoebozoa and excavata. There are also exceptions in which prokaryotic cells can be multicellular such as yeast and amoeba.
