A. Action of an acid on a metal B. Double decomposition C. Neutralisation D. Action of an acid on a…
A. Positive reaction to the brown ring test B. Ability to dissolve in cold water C. Decomposition on being strongly…
A. Na2O B. SO3 C. NO2 D. CO2 E. CuO Correct Answer: Option E - CuO
A. its pH value is high B. it s corrosive C. it changes the colour of litmus D. it has…
A. carbon (IV) oxide B. hydrogen sulphide C. nitrogen (ll) oxide D. ammonia gas Correct Answer: Option A - carbon…
A. dense population B. low birth rate C. great land mass D. limited industries Correct Answer: Option A - dense…
A. Cryolite B. Limestone C. Carbon D. Sulphur Correct Answer: Option B - Limestone
A. C2H2CI2 B. CH2CI5 C. C4H10 D. C5H12 Correct Answer: Option A - C2H2CI2
A. OHCI2-CH2OH B. H2C=CH-CH2OH C. CH3-CH(OH)-CH3 D. CH3-(CH2)3-CH2OH Correct Answer: Option C - CH3-CH(OH)-CH3
A. fermentation B. saponification C. oxidation D. esterification Correct Answer: Option D - esterification