WorksheetsUnit 1 & 3 Higher Chemistry Quiz
Total questions: 18
Worksheet time: 28mins
What are the types of intermolecular forces?
Van der Waals forces, ionic bonding, covalent bonding
London dispersion forces, permanent dipole-permanent dipole interactions, and hydrogen bonding
Ionic bonding, covalent bonding, metallic bonding
London dispersion forces, ionic bonding, metallic bonding
Identify the reducing agent and oxidising agent in the following reaction: 2K + Cl2 -> 2KCl
KCl is the reducing agent and Cl2 is the oxidising agent.
K is the reducing agent and Cl2 is the oxidising agent.
K is the oxidising agent and Cl2 is the reducing agent.
Cl2 is the reducing agent and K is the oxidising agent.
What is the purpose of chromatography in chemistry?
To determine the color of a chemical substance
To create new chemical compounds
To measure the volume of a substance
To separate and analyse mixtures of chemical substances
Explain how to calculate the enthalpy change for a chemical reaction using bond energies.
Find the sum of the bond energies of the reactants and the products, then take the difference between the two sums.
Multiply the molar mass of the reactants and products, then take the difference between the two products.
Find the sum of the bond energies of the reactants and the products, then add the two sums together.
Count the number of atoms in the reactants and products, then take the difference between the two counts.
What are the two factors which cause molecules to travel different distances in chromatography?
Size of molecule and its polarity
Temperature and pressure
Polarity and Solubility
Colour of molecule and its size
Name the element which exists as molecules with 8 atoms.
(a)
Calculate the enthalpy change for the following reaction: 2 H-Cl -> H-H + Cl-Cl
(a)
Which of the following is an environmental factor that affects process design?
Cost of feedstocks
Availability of feedstocks
Minimising the production of toxic substances
Percentage yield
Increasing the temperature on an ________ reaction will increase the concentration of products.
SO2 + O2 <=> SO3
If the concentration of SO2 is increased, the equilibrium position of the reaction will shift ___________.
In area X
All molecules form an activated complex
All reactions are successful
Collisions always form products
All molecules have the energy to form an activated comples
Which of the following chlorides would have the least ionic character
PCl3
LiCl
KCl
HCl
What is this piece of equipment called?
(a)
Which of the following compounds will have permanent dipole-permanent dipole interactions?
phosphorus hydride (PH3)
Hexane
Nitrogen Fluoride (NF3)
Methane
1. 0.22g of propane was used to heat 200cm3 of water. The temperature of water was raised by 35oC. Calculate the enthalpy of combustion of propane.
-5852
-3218
2297
3456
What is the concentration of a HCl solution if 24.7 cm3 of HCl are completely neutrilized by 35.8 cm3 of a 0.25 M NaOH solution?
0.362 M
3.62 M
0.172 M
35.4 M
Solution of accurately known concentration is called (a)
Calculate the volume, in cm3, of methane gas if the gas weighs 0.52 g. The molar volume of methane is 24 litres and its GFM is 16 g.
(a)
