In the reaction E+F ↔ G+H; the backward reaction is favoured if the concentration of?
A. F is increased B. E is increased C. E is reduced D. G is reduced Correct Answer: Option C – E is reduced Explanation Le chatalier’s principle states that whenever a change in temperature, pressure or concentration is imposed on a system in equilibrium,...
The chromatography separation of ink is based on the ability of the components to?
A. React with solvent B. React with each other C. Dissolve in each other in the column D. Move at different speeds in the column Correct Answer: Option D – Move at different speeds in the column
A little quantity of trichloromethane (b.pt 60°C) was added to a large quantity of ethanol (b.pt 78°C). The most probable boiling point of the resultant mixture is from?
A. 69°C – 70°C B. 70°C – 74°C C. 82°C – 84°C D. 60°C – 78°C Correct Answer: Option C – 82°C – 84°C
The formula CH2 for ethanoic acid is regarded as its?
A. Molecular formula B. General formula C. Empirical formula D. Structural formula Correct Answer: Option C – Empirical formulaProducts
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