A. 1.42.9KJ B. 571.7KJ C. 1143.4KJ D. 285.9KJ E. 2286.8KJ Correct Answer: Option C - 1143.4KJ
A. slow B. exothermic C. spontaneous D. irreversible E. not feasible Correct Answer: Option B - exothermic
A. 2 B. 3 C. 4 D. 7 E. 8 Correct Answer: Option B - 3
Y (s) + X²+(aq) → Y²+(aq) + X(s) X(s) + Z²+(aq) → X²+(aq) + Z(s) A. X>Y>Z B. Y >…
A. 5 mole B. 4 mole C. 3 mole D. 2 mole E. 1 mole Correct Answer: Option E -…
A. Zinc ions B. Chloride ions C. Sulphide ions D. Tetraoxosulphate (Vl) ions E. Trioxonitrate (V) ions Correct Answer: Option…
A. efflorescence B. effervescence C. phosphorescence D. fluorescence E. deliquescent Correct Answer: Option A - efflorescence
A. number of neutrons B. number of electrons C. electric charge D. electronic structure E. chemical properties Correct Answer: Option…
A. Direct combination of constituent elements B. Double decomposition involving a salt solution C. Reaction between an anhydride and water…
A. salts B. oxygen C. effervescence D. hydroxonium ions E. hydrogen gas Correct Answer: Option D - hydroxonium ions