

Creating and Working with Purple Gold
Interactive Video
•
Chemistry, Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
Liam Anderson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is purple gold primarily composed of?
Gold and silver
Gold and aluminum
Gold and copper
Gold and platinum
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did the narrator decide to dissolve the gold bar?
To reduce its weight
To change its color
To make it easier to measure
To increase its purity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the main challenge faced when initially creating purple gold?
Measuring the correct amount of gold
Finding the right temperature
Choosing the right tools
Preventing oxidation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What process helped enhance the purple color of the gold?
Adding more aluminum
Annealing at 600°C
Heating in an inert atmosphere
Cooling rapidly
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What issue did the narrator face with the purple gold's appearance?
It was too shiny
It had a lot of cracks
It was too soft
It was too heavy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did the narrator solve the problem of cracks in the purple gold?
By increasing the gold content
By using a different alloy
By degassing with argon
By cooling it faster
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the final shape the narrator aimed to create with the purple gold?
A bracelet
A necklace
A ring
A pendant
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