Metalliods are also referred to as
Metalliods are also referred to as A. semi-metals B. metals C. colliods D. non-metals Correct Answer: Option A…
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The ores that can be concentrated by flotation are
The ores that can be concentrated by flotation are A. nitride ores B. sulphide ores C. oxide ores…
In the diagram above which of the cures illustrates Arrhenius’ law?
In the diagram above which of the cures illustrates Arrhenius’ law? A. Y B. Z C. R D.…
The most abundant element on the earth’s crust is
The most abundant element on the earth’s crust is A. nitrogen B. hydrogen C. oxygen D. flourine Correct…
NH4Cl(s) ↔ NH3(g) + HCL(g) The reaction above can only attain equilibrium if
NH4Cl(s) ↔ NH3(g) + HCL(g) The reaction above can only attain equilibrium if A. a gaseous reactant is…
The most suitable metal that can be used as lightning conductor is
The most suitable metal that can be used as lightning conductor is A. silver B. copper C. iron…
N2(g) + 3H2(g) ↔ 2NH3(g) ΔH = -90 kJ In the equation above, the yield…
N2(g) + 3H2(g) ↔ 2NH3(g) ΔH = -90 kJ In the equation above, the yield of ammonia can…
The gas that can be dried using concentrated tetraoxosulphate (VI) acid is
The gas that can be dried using concentrated tetraoxosulphate (VI) acid is A. hydrogen bromide B. Sulphur (IV)…
When pure aluminium metal is heated to red hot in the presence of nitrogen gas,…
When pure aluminium metal is heated to red hot in the presence of nitrogen gas, the compound formed…
A dense white fume is formed when ammonia gas reacts with
A dense white fume is formed when ammonia gas reacts with A. O2(g) B. H2(g) C. Cl2(g) D.…