SPM CHEMISTRY 2

Which statement is true about isomers?

• Have the same boiling point

• Have the same chemical reaction

• Have the same density

• Have the same physical state at any temperature

which substance consists of atoms?

• Tetrachloromethane

• Carbon monoxide

• Ammonia

• Kripton

Which element is an alkaline earth metal?

• Zinc

• Sodium

• Magnesium

• Aluminium

Which substance can conduct electricity in both molten state and aqueous solution?

• Bromine water

• Lead(ll)nitrate

• Ethyl ethanoate

• Copper(ll)carbonate

which statement is correct about acid?

• Turns red litmus paper to blue

• Reacts with alkalis to give off oxygen gas

• Reacts with copper to give off hydrogen gas

• Reacts with calcium carbonate to give off caron dioxide gas.

Which salt is insoluble in water?

• Potassium carbonate

• Silver chloride

• Calcium nitrate

• Barium Chloride

which of the following is a reduction reaction?

• A copper(ll)ions gains two electrons

• Iron(ll)ions convert to iron (lll) ions

• Hydrogen sulphide loss hydrogen

• A magnesium atom lose two electrons

Streptomycin and penicillin are two examples of medicine Y.

What is the type of medicine Y?

• Hormone

• Analgesic

• Antibiotic

• Psychotherapeutic

Displacement of silver occurs when copper is added into a silver nitrate solution.Which of the following is correct about the reaction?

• silver ion is oxidised

• Copper is an oxidiing agent

• Colourless solution becomes blue at the end of experiment

• Mass of silver produced increases when copper powder is used instead of copper granule.

Which substance has amphoteric properties ?

• Sulphur dioxide

• Carbon dioxide

• Magnesium oxide

• Aluminum oxide