Carbon exist naturally in the combined state as
Carbon exist naturally in the combined state as A. graphite B. coal C. diamond D. wood Correct Answer:…
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The efficiency of a solid catalyst to increase reaction rates depends on its
The efficiency of a solid catalyst to increase reaction rates depends on its A. surface area B. solubility…
Dynamic equilibrium describes a situation where
Dynamic equilibrium describes a situation where A. a reaction gives back the reactant B. te concentration of the…
On heating, which of the following compounds will decompose to the free metal, nitrogen (IV)…
On heating, which of the following compounds will decompose to the free metal, nitrogen (IV) oxide and oxygen?…
The group IA metals are not found free in nature because they
The group IA metals are not found free in nature because they A. are very reactive and unstable…
To obtain pure carbon (II) oxide from its mixture with carbon (IV) oxide, the mixture…
To obtain pure carbon (II) oxide from its mixture with carbon (IV) oxide, the mixture should be A.…
The raw materials used for the smelting of iron ore in a furnace is
The raw materials used for the smelting of iron ore in a furnace is A. CaSO4 B. CaCO3…
The property used in the industrial preparation of nitrogen and oxygen from air is
The property used in the industrial preparation of nitrogen and oxygen from air is A. rate of diffusion…
In a flame test for calcium, the flame appears
In a flame test for calcium, the flame appears A. green when viewed through a blue glass B.…
Which of the following alloys contain iron?
Which of the following alloys contain iron? A. Duralumin and steel B. Brass and bronze C. Steel and…