The gas that can best be collected by downward displacement of air is?
A. Chlorine B. Sulphur (IV) oxide C. Ammonia D. Carbon (IV) oxide Correct Answer: Option C – Ammonia
A burning candle produces water and?
A. Carbon (II) oxide B. Carbon (IV) oxide C. Oxygen D. Hydrogen Correct Answer: Option B – Carbon (IV) oxide
The pair of organic compounds that are isomers is?
A. Benzene and methylbenzene B. Trichloromethane and tetrachloromethane C. Ethanol and propane D. But-1-ene and but-2-ene Correct Answer: Option D – But-1-ene and but-2-ene
A characteristic reaction of the compounds with the general formula CnH2n is?
A. Esterification B. Polymerization C. Decarboxylation D. Substitution Correct Answer: Option B – Polymerization
Proteins in acid solution undergo?
A. Polymerization B. Substitution C. Fermentation D. Hydrolysis Correct Answer: Option D – HydrolysisProducts
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