The rate of a chemical reaction doubled for every 10 °C rise in temperature. If the temperature is raised by 50 °C, the rate of reaction will be

32 times higher

The correct answer is Option (2) → 32 times higher

The rate of reaction doubles for every 10 °C rise.

Temperature increase:

$\frac{50^\circ\text{C}}{10^\circ\text{C}} = 5 \text{ intervals}$

Rate increase:

$\text{Rate factor} = 2^5 = 32$