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…
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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…
What is the decrease in volume of air when pyrogallol is shaken with 30.00cm3 of…
What is the decrease in volume of air when pyrogallol is shaken with 30.00cm3 of air ? A.…
Pure solvents are obtained by
Pure solvents are obtained by A. Distillation B. Condensation C. Extraction D. Evaporation Correct Answer: Option A Explanation
Deliquescent substance are used for
Deliquescent substance are used for A. Cooling B. Wetting C. Melting D. Drying Correct Answer: Option D Explanation
Which of the following statements is correct about the average kinetic energy of the molecules…
Which of the following statements is correct about the average kinetic energy of the molecules of a gas?…
The pollution from petroleum spillage in rivers and lakes can best be dispersed by
The pollution from petroleum spillage in rivers and lakes can best be dispersed by A. Pouring detergents B.…