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Lab Procedure Quiz

Lab Procedure Quiz

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Evelyn Hayes

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of initially heating the porcelain crucible?

To test the Bunsen burner

To change the color of the crucible

To clean off any residues from previous experiments

To melt the crucible

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What tool is used to cool the crucible after heating?

A wire gauze

A plastic sheet

A wooden board

A metal tray

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using crucible tongs during the experiment?

To safely handle the hot crucible

To stir the contents of the crucible

To measure the temperature of the crucible

To clean the crucible

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the electronic balance in this experiment?

To heat the crucible

To measure the mass of the crucible and its contents

To cool the crucible

To mix the contents of the crucible

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much of the substance 'XO' is added to the crucible?

4 grams

3 grams

2 grams

1 gram

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is observed when the crucible is gently heated with the substance 'XO'?

The substance turns into a gas

The substance turns into a liquid

The substance remains solid

The substance changes color

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the bubbles observed during heating?

They indicate the presence of impurities

They show that the substance is boiling

They signify the release of oxygen

They mean the crucible is overheating

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