Ethane has no effect on bromine or chlorine in Cloze (1): JXUwMDNjJXUwMDBkJXUwMDBmJXUwMDAwJXUwMDEzJXUwMDA2JXUwMDE2JXUwMDAx light/dark.

 In sunlight , a mixture of bromine and ethane  Cloze (2): JXUwMDNkJXUwMDFkJXUwMDA4JXUwMDFjJXUwMDAzJXUwMDBiJXUwMDAx to form  colourless mixture of bromoethane and hydrogen chloride gas.

Methane has no effect on bromine or chlorine in diffused light/dark.

In Cloze (3): JXUwMDJiJXUwMDA2JXUwMDFiJXUwMDAyJXUwMDA1JXUwMDBlJXUwMDBmJXUwMDFj , a mixture of chlorine and methane  explode to form  Cloze (4): JXUwMDNiJXUwMDBjJXUwMDAzJXUwMDAzJXUwMDFhJXUwMDA3JXUwMDFlJXUwMDA5JXUwMDE2JXUw MDAw mixture of chloromethane and hydrogen chloride gas. Cloze (5): JXUwMDBiJXUwMDI2JXUwMDE3JXUwMDExJXUwMDA3JXUwMDFkJXUwMDFkJXUwMDAxJXUwMDAxJXUw MDFkJXUwMDA2JXUwMDAx reaction is one in which a hydrogen atom is replaced by a halogen in presence of Cloze (6): JXUwMDJkJXUwMDE5JXUwMDE4JXUwMDA2JXUwMDEzJXUwMDE3JXUwMDFmJXUwMDA2JXUwMDAzJXUw MDA5JXUwMDEx light.