flame tests

Question 1

flame colour red means it is

Answer 1

lithium

Question 2

flame colour yellow means it is

Answer 2

sodium

Question 3

flame colour lilac means it is

Answer 3

potassium

Question 4

flame colour orange-red means it is

Answer 4

calcium ion

Question 5

blue- green flame means it is

Answer 5

copper ion

Question 6

why is the flame test used

Answer 6

to identify the positive metal ion by the colour of the flame they produce

Question 7

how do you carry out a flame test

Answer 7

• dip the loop of an unreactive metal in dilute acid
• hold it in the blue flame of a bunsen burner until until there is no colour change
• dip the loop of metal into the solid/sample solution and place it back into the blue bunsen flame