Chemistry Quiz

Pollution of rivers by organic waste is harmful to aquatic organisms because of _______

Ammonia is a compound of nitrogen and:

• Oxygen

• Carbon

• Hydrogen

• Sulfur

Which of the following is a common use of sulfuric acid?

• Baking soda

• Fertilizers

• Vinegar

• Batteries

Which of the following is a characteristic property of acids?

• Bitter taste

• Turns blue litmus paper red

• Slippery feel

• pH above 7

Water molecules are held together by:

• Ionic bonds

• Covalent bonds

• Metallic bonds

• Hydrogen bonds

The minimum amount of energy required for a chemical reaction to occur is known as the ______

• Activation energy

• Energy of reaction

• Free energy

• Energy of formation

Hydrogen gas burns in oxygen to produce:

• Water

• Carbon dioxide

• Nitrogen gas

• Hydrogen peroxide

Oxygen gas supports combustion because it:

• Is highly reactive

• Forms acids

• Is paramagnetic

• Reacts with metals

Which process releases oxygen during photosynthesis?

• Reduction

• Oxidation

• Respiration

• Photolysis

The chemical decomposition of compounds which takes place when an electric current is passed through either a solution or the molten form of the compound is known as ______

• Electromotive force

• Electrolysis

• Potential difference

• Electrode potential