Jamb Chemistry Mock Exam 1 Mock Exam 1

It provides guidelines on how to use the items in the first aid kit.

It is used for cleaning wounds to kill germs.

It helps to preserve the life of the sick/injured person.

It is a chemical substance used to protect animals from disease.

$50 \text{ cm}^3$

$62.5 \text{ cm}^3$

$100 \text{ cm}^3$

$125 \text{ cm}^3$

3-methylhexane

hexane-3-methyl

methyl-3-hexane

3-hexanemethyl

$Na_2SO_3$ solution changes to $Na_2SO_4$, cold $NaOH$ forms $NaCl$ and $NaOCl$, hot $NaOH$ forms $NaCl$ and $NaClO_3$.

$Na_2SO_3$ solution remains unchanged, cold $NaOH$ forms $NaCl$ and $H_2O$, hot $NaOH$ forms $NaCl$ and $O_2$.

$Na_2SO_3$ solution turns brown, cold $NaOH$ forms $NaOCl$ and $H_2O$, hot $NaOH$ forms $NaClO_3$ and $H_2O$.

$Na_2SO_3$ solution turns blue, cold $NaOH$ forms $Na_2CO_3$ and $H_2O$, hot $NaOH$ forms $Na_2SO_4$ and $H_2O$.

$0.1 \text{ M}$

$0.2 \text{ M}$

$0.5 \text{ M}$

$1.0 \text{ M}$

Hydrogen gas

Bromine

Concentrated sulphuric acid

Hydrogen chloride gas

Industrial emissions

Combustion of fuels

Volcanic eruption

Deforestation

The rate of forward reaction is equal to the rate of backward reaction.

It must be in a closed system.

The concentrations of reactants and products are necessarily equal.

It is a dynamic equilibrium where both forward and backward reactions occur simultaneously.

A science that deals with the study of living organisms and their processes.

A science that deals with the composition, structure, and properties of matter.

A scientific study of nature, focusing on the physical forces and energy.

A branch of science concerned with the study of celestial bodies and the universe.

Precipitation reaction, because both are soluble in water.

Reaction between hydrochloric acid and metal carbonates, because both metals are unreactive.

Direct combination of metal with chlorine gas, due to safety concerns for sodium and insolubility for lead.

Reaction between hydrochloric acid and metal oxide, due to the formation of an insoluble coating for lead and vigorous reactivity for sodium.