\(PCl_{5(g)} \rightarrow PCl_{3(g)} + Cl_{2(g)}\)In the reaction above, an increase in pressure will
See more
2002
If the relative molecular mass of an element is not a whole number, it can be deduced that the element is
See more
2002
Which of the following ions require the largest quantity of electricity for discharge at an electrode?
See more
2002
Which of the following compounds can be represented by the molecular formula C2H6O?
See more
2002
The atom of an element X is represented as \(^y_z X\). The basic chemical properties of X depend on the value of
See more
2002
A hydrogen atom which has lost an electron contains
See more
2002
A suitable reagent for distinguishing between ethanoic acid ethanol is
See more
2002
Which of the following types of alkanols undergo oxidation to produce alkanoic acids? 1. Primary alkanols 11. Secondary alkanols 111. Tertiary alkanols
See more
2002
Iron is often galvanized in order to
See more
2002
The energy value of petrol can be determined by a
See more
2002
The formula CH2 for ethanoic acid is regarded as its
See more
2002
A compound contains 31.91% potassium, 28.93% chlorine and the rest oxygen. What is the chemical formula of the compound?[K = 39, Cl = 35.5, O = 16]
See more
2002
What amount of mercury would be liberated if the same quantity of electricity that liberates 0.65g of zinc is applied?
See more
2002
In the reaction E+F ↔ G+H, the backward reaction is favoured if the concentration of
See more
2002
The chromatography separation of ink is based on the ability of the components to
See more
2002
A little quantity of trichloromethane (b.pt 60,oC) was added to a large quantity of ethanol (b.pt 78,oC). The most probable boiling point of the resultant mixture is from
See more
2002
When dissolved in water, NaOH flakes show
See more
2002
The Arrhenius equation expresses the relationship between the speed of a reaction and its
See more
2002
When H2S is passed into a solution of iron (III) chloride, the solution turns
See more
2002
Which of the following equations show that a reaction is in equilibrium?