Chemistry

The ratio of the change in the concentration of the reactants is known as

• instantaneous reaction

• Equilibrium

• average rate of reaction

• none of the above

The instantaneous rate of reaction is the rate of the reaction at a particular moment of time.

• True

• False

Which of the following are slow reactions?

• Inversion of glucose

• Rusting of iron

• Coal formation

• Dissolving salt in water

The given reaction is an example of

• instantaneous reaction

• fast reaction

• moderate reaction

• slow reaction

Rate of disappearance of the reactant can be expressed as

• −Δ[R]/Δt

• Δ[R]/Δt

• Δ[P]/Δt

• −Δ[P]/Δt

The given image show the precipitation of silver chloride which is a

• slow reaction

• instantaneous reaction

• fast reaction

• moderate reaction

The instantaneous rate of reaction is

• rate of an exothermic reaction

• the rate of the reaction over a period of time.

• the rate of the reaction at a particular moment of time.

• a reaction that takes place in the presence of a catalyst.

Rate of appearance of the products can be expressed as

• −Δ[R]/Δt

• Δ[R]/Δt

• Δ[P]/Δt

• −Δ[P]/Δt