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1. An atom or a group of atoms which is responsible for chemical characteristics of an organic compound is called __________.
2. The general molecular formula of alkynes is __________ .
3. In IUPAC name, the carbon skeleton of a compound is represented by __________ (root word / prefix / suffix).
4. (Saturated / Unsaturated) __________ compounds decolourize bromine water.
5. Dehydration of ethanol by conc. Sulphuric acid forms __________ (ethene/ ethane).
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