Subject :NSO Class : Class 10

Shaheen, a class 10 student studied the speed of the given reaction under different conditions.

In experiment I, she added 1 g of MnO_{2} (catalyst) to
75 cm^{3} of 0.4 mol/L H_{2}O_{2} solution at 30°C
In experiment II, she added 1 g of MnO_{2} to 100 cm^{3} of 'X' mol/L H_{2}O_{2} solution at 'T' °(C)
She recorded her observations and plotted a graph as shown in the given figure.

The values of X and T in experiment II could be
respectively

A 0.30 and 35

B 0.40 and 30

C 0.25 and 30

D 0.30 and 30.

How to find this?