AIC SS1 Chemistry Revision Test 2nd Term
A) Nitrogen and oxygen B) Oxygen and hydrogen C) Sulphur and oxygen D) Carbon and oxygen
A) CH2 B) CH3 C) C2H4 D) CH4
A) CHO B) CH4O C) CH2O D) CH3O
A) XY2 B) X2Y3 C) X3Y2 D) X2Y 
A) 2 and 3 B) 6 and 2 C) 8 and 2 D) 1 and 3
A) Oxidation numbers B) Atomic mass C) Molar mass D) No of moles
A) -5 B) +7 C) +8 D) -7
A) Sublimation B) Evaporation C) Crystallisation D) Melting
A) 22 B) 10 C) 20 D) 32
A) 42.66% B) 14.71% C) 28.07% D) 21.33%
A) 328 B) 164 C) 346 D) 160
A) Sulphur B) Chlorine C) Potassium D) Argon
A) Neutrons between two atoms B) Electrons from one atom to another C) Protons between two atoms D) Electrons between two atoms
A) H2O B) NaCl C) CO2 D) NH3
A) Presence of positive ions in a sea of delocalized electrons B) Sharing of electrons between atoms C) Transfer of electrons between atoms D) Formation of covalent bonds between atoms
A) Sodium chloride B) Water C) Iron D) Carbon dioxide
A) Electron affinity of atoms B) Atomic radius of atoms C) Electronegativity difference between atoms D) All of the above
A) Nitrogen B) Oxygen C) Carbon D) Helium
A) Ethanol (C2H5OH) B) Ammonia (NH3) C) Carbon dioxide (CO2) D) Methane (CH4)
A) Strong covalent bonds between atoms B) Weak intermolecular forces between molecules C) Strong electrostatic attractions between ions D) Weak intramolecular forces within molecules
A) Hydrogen peroxide (H2O2) B) Methane (CH4) C) Ethanol (C2H5OH) D) Sodium chloride (NaCl)
A) Have strong intermolecular forces of attraction B) Have fixed positions in a lattice structure C) Are closely packed together D) Have negligible volume compared to the space they occupy
A) The motion of particles within a gas B) The density of particles within a gas C) The arrangement of particles within a gas D) The chemical reactions occurring within a gas
A) Have particles that are far apart and moving randomly B) Have particles that are highly compressed and far apart C) Have particles that are highly compressed and free to move D) Have particles that are closely packed together and vibrate in fixed positions
A) Rusting of iron B) Melting of ice C) Burning of wood D) Digestion of food
A) Temperature and volume of a gas B) Pressure and temperature of a gas C) Pressure and volume of a gas D) Volume and number of moles of a gas
A) Temperature and volume of a gas B) Volume and number of moles of a gas C) Pressure and temperature of a gas D) Pressure and volume of a gas
A) Charles's law and Avogadro's law B) Boyle's law and Avogadro's law C) Boyle's law, Charles's law, and Avogadro's law D) Boyle's law and Charles's law
A) PV = nT B) PV = nRT C) PV = RT D) P = V/nRT
A) Volume B) Temperature C) Pressure D) Square root of its molar mass
A) Density B) Volume C) Atomic mass D) Number of moles
A) Atoms in one mole of a substance B) Particles in one gram of a substance C) Electrons in one atom of a substance D) Moles in one liter of a gas
A) CO2 B) NH3 C) H2O D) HCN
A) High similarity in electronegativity B) Both elements are non-metals C) Similar electron affinity values D) Large difference in electronegativity
A) Sodium B) Chlorine C) Helium D) Oxygen
A) They involve sharing electrons. B) They can be polar or non-polar C) They form between atoms with similar electronegativity. D) They are responsible for the high melting and boiling points of many molecules.
A) London dispersion forces B) Covalent bonding C) Hydrogen bonding D) Dipole-dipole interactions
A) They occupy a significant volume. B) They are constantly in motion. C) They attract each other strongly D) They have specific shapes.
A) solids are rigid and have definite shapes B) gases expand to fill their container. C) all three statements are true. D) liquids flow easily and have indefinite shapes.
A) dependent on the container size. B) directly proportional to its temperature C) inversely proportional to its temperature D) constant
A) K B) R C) P D) V
A) wood and oxygen is greater than the mass of the products. B) wood and oxygen is less than the mass of the products. C) wood decreases, while the mass of the products remains constant. D) wood and oxygen is equal to the mass of the carbon dioxide and water vapor.
A) are not needed, only the coefficients are important. B) reactants and products are used to convert between grams and moles. C) elements are used directly. D) compounds are ignored.
A) balance the chemical equation first. B) memorize the names of all elements and compounds. C) perform complex mathematical calculations. D) know the physical properties of all the reactants and products.
A) The color of a compound can vary depending on its source. B) Water (H₂O) always contains hydrogen and oxygen in a 2:1 ratio by mass. C) Carbon dioxide (CO₂) has a constant ratio of carbon to oxygen, regardless of its origin. D) All samples of table salt (NaCl) have the same ratio of sodium to chlorine.
A) 1:3/2 B) 1:2 C) Cannot be determined without additional information. D) 2:3
A) 2 grams of hydrogen react with 1 gram of oxygen to produce water. B) Two molecules of hydrogen react with one molecule of oxygen to form two molecules of water. C) Hydrogen and oxygen react explosively to form water. D) Water can decompose into hydrogen and oxygen under specific conditions.
A) all chemical reactions. B) compounds that can react with each other. C) only elements, not compounds. D) elements that can form more than one compound with another element.
A) the names of the reactants and products B) the order in which the reactants combine. C) the relative amounts of each molecule or atom involved in the reaction. D) the states of matter of the reactants and products.
A) Cannot be determined without additional information. B) 5 moles C) 10 moles D) 2.5 moles |
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