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Subject :NSO Class : Class 10
Rahul, a class 10 student conducted two experiments as follows :
Experiment 1 : Excess calcium carbonate was added
to 100 cm3 of 0.2 mol/dm3 HCl at 25°C.
Experiment 2 : Excess calcium carbonate was added
to 80 cm3 of HCl of concentration X mol/dm3 and at temperature Y°C.
Following curves show results of the experiments.
Identify X and Y.
X(mol/dm3) | Y(°C) | |
A | 0.15 | 20 |
B | 0.20 | 30 |
C | 0.30 | 25 |
D | 0.40 | 20 |