If hydrogen sulphide gas is passed into a solution of a pure iron chloride, a…
If hydrogen sulphide gas is passed into a solution of a pure iron chloride, a yellow deposit appears.…
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Three solutions contain carbonate, sulphate and sulphide ions respectively. One test that will identify just…
Three solutions contain carbonate, sulphate and sulphide ions respectively. One test that will identify just ONE of them…
Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used…
Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used to distinguish between…
If excess zinc is added to a bluish green solution of copper (II) sulphate, and…
If excess zinc is added to a bluish green solution of copper (II) sulphate, and the excess zinc…
Consider the following exothermic reaction 2SO2(g) + O2(g) ↔ 2SO3(g) If the temperature of the…
Consider the following exothermic reaction 2SO2(g) + O2(g) ↔ 2SO3(g) If the temperature of the reaction is reduced…
Which of the following compounds will form a solution if exposed to air?
Which of the following compounds will form a solution if exposed to air? A. Na2CO3.10H2O B. NaNO3 C.…
The most common type of chemical reaction which alkanes undergo is
The most common type of chemical reaction which alkanes undergo is A. substitution B. addition C. condensation D.…
The most common type of chemical reaction which alkanes undergo is
The most common type of chemical reaction which alkanes undergo is A. substitution B. addition C. condensation D.…
The most common type of chemical reaction which alkanes undergo is
The most common type of chemical reaction which alkanes undergo is A. substitution B. addition C. condensation D.…
Hypochlorous acid is used as a bleach because
Hypochlorous acid is used as a bleach because A. it is a strong acid B. it yields chlorine…