Share Facebook Email Telegram WhatsApp Results #1. Carbon exists in the atmosphere in the form of _____. Carbon monoxide only Carbon monoxide only Carbon monoxide in traces and carbon dioxide Carbon monoxide in traces and carbon dioxide Carbon dioxide only Carbon dioxide only Coal Coal #2. A molecule of ammonia (NH3) has ________. Only single bonds Only single bonds Only double bonds Only double bonds Only triple bonds Only triple bonds Two double bonds and one single bond Two double bonds and one single bond #3. Buckminsterfullerence is an allotropic form of _________ Phosphorus Phosphorus Sulphur Sulphur Carbon Carbon Tin Tin #4. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of ________. Addition reaction Addition reaction Substitution reaction Substitution reaction Displacement reaction Displacement reaction Oxidation reaction Oxidation reaction #5. In which of the following compounds ------- OH is the functional group? Butanone Butanone Butanol Butanol Butanoic acid Butanoic acid Butanal Butanal #6. The soap molecule has a __________. Hydrophilic head and a hydrophobic tail Hydrophilic head and a hydrophobic tail Hydrophobic head and a hydrophilic tail Hydrophobic head and a hydrophilic tail Hydrophobic head and a hydrophobic tail Hydrophobic head and a hydrophobic tail Hydrophilic head and a hydrophilic tail Hydrophilic head and a hydrophilic tail #7. Chlorine reacts with saturated hydrocarbons at room temperature in the ___________. Absence of sunlight Absence of sunlight Presence of sunlight Presence of sunlight Presence of water Presence of water Presence of hydrochloric acid Presence of hydrochloric acid #8. Ethanol reacts with sodium and forms two products. These are_____________. Sodium ethanoate and hydrogen Sodium ethanoate and hydrogen Sodium ethanoate and oxygen Sodium ethanoate and oxygen Sodium ethoxide and hydrogen Sodium ethoxide and hydrogen Sodium ethoxide and oxygen Sodium ethoxide and oxygen #9. Vinegar is a solution of ____________. 50% - 60% acetic acid in alcohol 50% - 60% acetic acid in alcohol 5% - 8% acetic acid in alcohol 5% - 8% acetic acid in alcohol 5% - 8% acetic acid in water 5% - 8% acetic acid in water 50% - 60% acetic acid in water 50% - 60% acetic acid in water #10. The first member of alkyne homologous series is________. Ethyne Ethyne Ethene Ethene Propyne Propyne Methane Methane Finish
