Chemistry IGCSE Factual Spec Points Quiz

What is a solvent?

• A substance that dissolves a solute

• A substance that is dissolved in a solvent

• A solution that contains the maximum amount of solute

• A mixture of two or more substances

What is the relative mass and charge of a proton?

• Mass = 1, Charge = +1

• Mass = 1, Charge = 0

• Mass ≈ 0, Charge = -1

• Mass = 2, Charge = +2

What is the atomic number?

• The number of protons in an atom

• The sum of protons and neutrons

• The weighted average mass of an atom

• The number of protons and electrons in an atom

What is a covalent bond?

• The electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms

• The electrostatic attraction between electrons and nuclei of the bonded atoms

• The sharing of electrons

• The transfer of electrons between one atom and another

What is the charge of a Group 1 ion?

• +1

• +2

• -1

• -2

What is the color and physical state of chlorine at room temperature?

• Green gas

• Red-brown liquid

• Grey solid

• Colorless gas

What are the approximate percentages by volume of the four most abundant gases in dry air?

• 78% oxygen, 21% nitrogen, 0.9% argon, 0.04% carbon dioxide

• 78% nitrogen, 21% oxygen, 0.9% argon, 0.04% carbon dioxide

• 78% argon, 21% oxygen, 0.9% nitrogen, 0.04% carbon dioxide

• 78% carbon dioxide, 21% nitrogen, 0.9% oxygen, 0.04% argon

Which gas test results in a squeaky pop with a lit splint?

• Oxygen

• Carbon dioxide

• Hydrogen

• Ammonia

What is the reactivity series of metals from most to least reactive?

• Na, K, Li, Ca, Mg, Al, Zn, Fe, Cu, Ag, Au

• K, Na, Li, Ca, Mg, Al, Zn, Fe, Cu, Ag, Au

• Li, Na, K, Ca, Mg, Al, Zn, Fe, Cu, Ag, Au

• K, Na, Li, Mg, Ca, Al, Zn, Fe, Cu, Ag, Au

What is the source of H+ ions in aqueous solution?

• Alkalis

• Acids

• Salts

• Bases