Time left 1 Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products? Television Refrigerator Tube light Cooking gas 2 Air is a/an compound element electrolyte mixture 3 LPG consists of mainly methane, ethane and hexane ethane, hexane and nonane methane, hexane and nonane methane, butane and propane 4 Marsh gas is nitrogen ethane methane hydrogen 5 Permanent hardness of water can be removed by adding chlorine washing soda potassium permanganate bleaching powder 6 In fireworks, the green flame is produced because of sodium barium mercury potassium 7 Balloons are filled with nitrogen helium oxygen argon 8 Diamond is an allotropic form of germanium carbon silicon sulphur
Skip This