3 Which reaction involves burning of hydrocarbons? A Addition B Halogenation C Combustion D Substitution
11 The functional group –COOH is called: A Amino group B Hydroxyl group C Carboxyl group D Carbonyl group
12 Which hydrocarbon turns bromine water colorless? A Alkane B Alkene C Cycloalkane D Saturated hydrocarbon
13 Hydrocarbons are organic compounds that contain: A Carbon and oxygen B Carbon and hydrogen C Hydrogen and nitrogen D Carbon, hydrogen and oxygen
15 Alkenes are hydrocarbons having: A Only single bonds B At least one double bond C At least one triple bond D No bonds
16 Structural isomers have the same: A Structural formula B Chemical properties only C Molecular formula D Physical properties
21 Unsaturated hydrocarbons contain: A Only single bonds B Double or triple bonds C No bonds D Ionic bonds
24 Structural formula shows: A Only molecular mass B Only number of atoms C Arrangement of atoms D Physical state