Which of the following does not affect the rate of a chemical reaction?
Addition or presence of a catalyst
Size of the reacting particles
The enthalpy change for the reaction
Concentration of the reactants
Temperatureat which the reaction is carried out
Correct answer is C
No explanation has been provided for this answer.
Which of the following compound is aromatic?
Benzene
Cyclobutane
Cyclopentane
Hexane
Ethene
Correct answer is A
No explanation has been provided for this answer.
The reaction represented by the equation NaOH(aq) + HCI(aq) → NaCI(aq) + H2O(/)
is a double decomposition
is a neutralization
is reversible
is usually catalysed
attains equilibrium after a few seconds
Correct answer is B
No explanation has been provided for this answer.
The following are uses of sulphur except
manufacture of tetraoxosulphate (VI) acid
prevention of the growth of fungi
vulcanization rubber
manufacture of dyes
coating of steel to prevent rusting
Correct answer is E
No explanation has been provided for this answer.
An acid present in proteins is
lactic acid
amino acid
propanoic acid
palmitic acid
stearic acid
Correct answer is B
No explanation has been provided for this answer.