Which of the following affects the accuracy and authenticity of the trial balance?
Error of ommission
Error of commission
Error of transposition
Error of original entry
Correct answer is C
No explanation has been provided for this answer.
Sales day book
Purchases day book
Sales subsidiary book
Cash book
Correct answer is D
No explanation has been provided for this answer.
The pollutant usually presents in a city which generates its electricity from coal?
fog
carbon(ii)oxide
smog
sulphur(iv)oxide
Correct answer is D
In the majority of power plants, sulfur appears due to coal burning which is used to generate electricity.
The reactions below represent neutralization reaction, in which of them is the value of ΔH highest?
CH\(_3\)CH\(_2\)COOH + KOH → CH\(_3\)CH\(_2\)COOK + H\(_2\)O
NH\(_4\)OH + HCL → NH\(_4\) + H\(_2\)O
NaOH + HCL → NaCL + H\(_2\)O
CH\(_3\)COOH + NaOH → CH\(_3\)COONa + H\(_2\)O
Correct answer is C
The enthalpy change of neutralisation involving weak acids are smaller in magnitude compared to that between strong acids and strong bases. This is because weak acids/bases are partially dissociated, which means not all hydrogen ions are free to react with hydroxide ions.
For strong acids and bases, the enthalpy of neutralisation values are always closely similar with the values -57 and -58 KJ/mol. We know that strong acids completely ionize in water. In case of weak acids, only partial dissociation of its ions occurs.
Cash account
Bank account
Suspense account
Purchases account
Correct answer is B
No explanation has been provided for this answer.