colour
concentration
presence of light
surface area
temperature
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Colour is the only option shown here that does not affect a chemical reaction.
As the higher the concentration of a solution,the fater the rate(speed) of a chemical reaction.
The presence of light is a factor of rate of a chemical reaction as light is a form of energy which agitates the moles and increases the energy used in reaction.
Surface area of the reactants of a reaction also affects the rate as a large surface area increases the available particles that can be involved in the collisions of a chemical reaction.
Temperature is an important factor of the rate of a chemical reaction as increase in temperature which in turn causes an increase in heat sppeds up a reaction because heat is a form of energy used up in chemical reactions.
