What is the primary focus of the practical discussed in the video?

Chemistry Practical Quiz

Interactive Video
•
Chemistry, Science
•
9th - 12th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identifying cations in unknown salts
Identifying anions in unknown salts
Measuring the pH of solutions
Determining the solubility of salts
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to avoid cross-contamination between solutions?
It can increase the temperature of the solutions
It can make the solutions more acidic
It can cause inaccurate observations
It can change the color of the solutions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color precipitate is formed when aluminium ions react with sodium hydroxide?
Blue
Green
Brown
White
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you differentiate between calcium and aluminium ions when both form white precipitates?
By using a flame test
By adding more sodium hydroxide
By adding hydrochloric acid
By heating the solution
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What flame color is produced by lithium ions?
Blue-green
Crimson red
Lilac
Orange
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ion causes a blue-green flame in the flame test?
Calcium
Sodium
Potassium
Copper
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the characteristic smell of ammonia?
Pungent and fishy
Odorless
Sour
Sweet
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