C2H5OH(aq) → Y. What is Y if the reaction takes place in conc. H2SO4 at 180°C?
A. CH4 B. C2H5COOH C. C2H4 D. CH3OCH3 Correct Answer: Option C – C2H4
3Cu + pHNO3 →3Cu(NO3)2 + 4H2O + xNO. The values of p and x respectively are?
A. 1 and 3 B. 2 and 3 C. 6 and 2 D. 8 and 2 Correct Answer: Option D – 8 and 2
The filter in the cigarette reduces the nicotine content by?
A. Burning B. Adsorption C. Evaporation D. Absorption Correct Answer: Option B – Adsorption
What is the percentage by mass of oxygen in Al2(SO4)3. 2H2O? [Al = 27, S = 32, H = 1, O = 16]
A. 14.29% B. 25.39% C. 50.79% D. 59.25% Correct Answer: Option D – 59.25% Explanation Al2(SO4)3. 2H2O 2 * 27 + 3*32 + 14 * 16 + 4 * 1 = 54 + 96 + 224 + 4 = 378 % O2 = (224/378) * (100/1) =...Products
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