A. evaporation B. distilation C. fermentation D. oxidation Correct Answer: Option B B. distilation
A. the knocking tendency of the fuel is low B. the fuel is a mixture of several hydrocarbons C. a…
A. C2H2 B. C2H4 C. C4H6 D. C6H12 Correct Answer: Option A A. C2H2
A. the knocking tendency of the fuel is low B. the fuel is a mixture of several hydrocarbons C. a…
A. 0.10 mole B. 0.20 mole C. 1.0 mole D. 2.0 mole Correct Answer: Option B B. 0.20 mole
l The electrolyte must be a soluble salt of tin ll. the objective to be plated is made the cathode…
A. V B. W C. X D. Z Correct Answer: Option D D. Z
A. decolourize acidified KMnO4 solution B. decolourize acidified FeSO4 solution C. liberate CI2 from a chloride D. liberate CO2 from…
A. the products have less heat content than reactants B. the system absorbs heat from the surrounding C. the activation…
A. adding dilute acid B. heating at a high temperature C. reduction with CO D. adding dilute NaOH(aq) Correct Answer:…