Chemical analysis - Retrieval 1

What colour flame will a compound of lithium give when in a Bunsen flame?

• Crimson

• Orange

• Yellow

• Red

What colour flame will a compound of sodium give when in a Bunsen flame?

• Red

• Orange

• Yellow

• Green

What colour flame will a compound of potassium give when in a Bunsen flame?

• Crimson

• Yellow

• Green

• Lilac

What colour flame will a compound of calcium give when in a Bunsen flame?

• Orange/Red

• Yellow/Orange

• Blue/Green

What colour flame will a compound of copper give when in a Bunsen flame?

• Red

• Orange

• Yellow

• Green

Describe the test and positive result for testing a gas to see if it is oxygen

A gas does not burn with a squeaky pop but does turn lime-water cloudy when bubbled through it. Which gas is it?

• Hydrogen

• Oxygen

• Carbon dioxide

• Chlorine

What is the formula of the gas that burns with a squeaky pop?

Which of the following is NOT part of the process or positive result for testing for chlorine gas?

• Wet the litmus paper

• Use litmus paper

• Hold a glowing splint in the gas

• The litmus paper is bleached white

Which of the following lists does NOT contain a formulation

• Baby food

  Fuel

  Make-up

• Fertiliser

  Ink

  Medicine

• Paint

  Food

  Shampoo

• Water

  Tree sap

  Blood