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Ethanol reacts with excess acidified K\(_2\)Cr\(_2\)O\(_7\) to produce
The type of reaction that is peculiar to benzene is?
The formula for ethyl butanoate is
The leachate of a certain plant ash is used in local soap making because it contains
How many isomers does pentane have?
Ethene reacts with hydrogen bromide to give
The modern process of manufacturing steel for iron is by
Chlorine gas turns a damp starch-iodide paper
The metal that liberates hydrogen from cold water in bubbles only is?
The salt that will form a precipitate soluble in excess ammonia solution is
Which of the following statements is true of sulphur (IV) oxide?
Hydrogen can be displaced from a hot alkaline solution by?
Metals of the first transition series have special properties which are different from those of groups I and II elements because they have partially filled
Chlorine gas is prepared in the laboratory by
Which of the following is an electrolyte?
When sugar is dissolved in tea, the reaction is always accomplished by
CO(g) + H2O(g) → CO2(g) + H2(g)
From the reaction above, calculate the standard enthalpies of formation if CO2(g), H2O(g) and CO(g) in kJ mol-1 are -394, -242, and -110 respectively.
In the electrolysis of a concentrated solution of sodium chloride using electrodes, which of the following ions are discharged at the cathode and anode respectively?
When at equilibrium, which of the reactions below will shift to the right if the pressure is increased and the temperature is kept constant?
If y is an oxidizing agent that reacts with a reducing agent, Z, which of the following is correct?