Equal amounts of marble chips are reacted separately with...
Equal amounts of marble chips are reacted separately with 100cm3 of hydrochloric acid of different concentrations. If all the marble chips reacted; which of the following remained the same in each case?
Average rate of evoluton of gas
Total mass of gas evolved during the reaction
Time taken for the reaction to reach completion
Initial reaction rates
Correct answer is B
The total mass of gas evolved during the reaction will remain the same in each case. This is because the amount of marble chips is the same in each case, and the reaction goes to completion. Therefore, the same amount of gas will be produced in each case, regardless of the concentration of the hydrochloric acid.
Which of the following pollutants is biodegradable ? ...
\(^{226}_{88}Ra\) → \(^x_{86}Rn\) + alpha particle...
which of the following elements has the highest ionization energy? ...
The energy value of petrol can be determined by ...
The atomic number of chlorine is 17. What is the number of electrons in a chloride ion? ...
Which of the following dilute acids does not react with metals to liberate hydrogen? ...
In the redox reaction represented by the following equation: Cu2+aq + Zn(s) → Cu(s) + Zn2+...