Chemical Process
Pick out the endothermic reaction out of the following.

CO +1/2O₂ = CO₂
C+1/2O₂ = CO
CO + 3H₂ = CH₄ + H₂O
CaCO₃ = CaO + CO₂

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

Improve the rate of crystallisation of sugar
Adjust the pH of the syrup
Remove the coloring matter from the syrup
Reduce the viscosity of the syrup

ANSWER DOWNLOAD EXAMIANS APP