C(s) + 2S(g) → CS2(g) ΔH = +89 kJ mol-1 The chemical equation above implies…
C(s) + 2S(g) → CS2(g) ΔH = +89 kJ mol-1 The chemical equation above implies that A. each…
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Ethanoic acid is
Ethanoic acid is A. tribasic B. unionizeable C. monobasic D. dibasic Correct Answer: Option C Explanation
Which of the following best explains the increase in the rate of a chemical reaction…
Which of the following best explains the increase in the rate of a chemical reaction as the temperature…
What current in amperes will deposit 2.7g of aluminium in 2 hours? [Al = 27,…
What current in amperes will deposit 2.7g of aluminium in 2 hours? [Al = 27, F = 96…
A metal M displaces zinc from zinc chloride solution. This shows that
A metal M displaces zinc from zinc chloride solution. This shows that A.M is more electronegative than zinc…
P(g) + Q(g) ↔ 3R(s) + S(g) ΔH is negative Which of the following will…
P(g) + Q(g) ↔ 3R(s) + S(g) ΔH is negative Which of the following will increase the yield…
In which of the following reactions does reduction takes place
In which of the following reactions does reduction takes place A. Fe2+ – e– → Fe3+ B. 2O2-…
Phosphorus is stored under water to prevent it from
Phosphorus is stored under water to prevent it from A. Dehydrating B. Becoming inert C. Smelling D. Catching…
The chemical used for coagulation in water purification is
The chemical used for coagulation in water purification is A. Aluminium tetraoxosulphate (VI) B. Copper tetraoxosulphate (VI) C.…
Environmental pollution is worsened by the release from automobile exhausts of
Environmental pollution is worsened by the release from automobile exhausts of A. Water vapour B. Steam C. Smoke…