Question 1

What piece of lab equipment is used to measure the volume of liquids accurately?

Accepted Answer

Graduated cylinder

Answer

Beaker

Answer

Pipette

Answer

Test tube

Question 2

Which piece of laboratory equipment is used for heating substances?

Accepted Answer

Bunsen burner

Answer

Volumetric flask

Answer

Petri dish

Answer

Mortar and pestle

Question 3

What laboratory equipment is commonly used to hold or mix small quantities of liquid chemicals?

Accepted Answer

Test tube

Answer

Burette

Answer

Conical flask

Answer

Beaker

Question 4

Which piece of equipment is used to measure the mass of a substance in a chemistry lab?

Accepted Answer

Balance scale

Answer

Graduated cylinder

Answer

Volumetric flask

Answer

Thermometer

Question 5

What is the primary purpose of a mortar and pestle in a chemistry lab?

Accepted Answer

To grind solids into finer powders

Answer

To measure liquid volumes

Answer

To hold chemical reactions

Answer

To heat substances

Question 6

Which safety equipment should always be worn when working with chemicals in the lab?

Accepted Answer

Safety goggles

Answer

Face mask

Answer

Gloves

Answer

Laboratory coat

Question 7

Which piece of lab equipment is used to separate solids from liquids through filtration?

Accepted Answer

funnel

Answer

pipette

Answer

test tube

Answer

beaker

Question 8

What is the value of

2.5 	imes 10^3

in standard notation?

Accepted Answer

2500

Answer

25000

Answer

250

Answer

2.5

Question 9

What is

2.5 	imes 10^3

in standard notation?

Accepted Answer

0.078

Answer

0.78

Answer

78

Answer

0.0078

Question 10

Express the number 56000 in scientific notation.

Accepted Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Question 11

Which of the following is the correct scientific notation for the number 0.0023?

Accepted Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Answer

5.6 	imes 10^4

Question 12

What is the value of

2.5 	imes 10^3

in standard notation?

Accepted Answer

400000

Answer

4000

Answer

40000

Answer

400

Question 13

Which of the following numbers is closest to

2.5 	imes 10^3

?

Accepted Answer

3450000

Answer

345

Answer

345000

Answer

34500

Question 14

What is

2.5 	imes 10^3

in standard notation?

Accepted Answer

0.00012

Answer

0.000012

Answer

0.0012

Answer

0.012

Question 15

What is the purpose of wearing safety goggles in the laboratory?

Accepted Answer

To protect your eyes from hazardous substances and flying debris.

Answer

To help you see better in the dark

Answer

To look cool while performing experiments

Answer

To prevent dust from getting in your eyes

Question 16

What should you do if you notice a colleague using equipment incorrectly in the lab?

Accepted Answer

Politely inform them of the correct procedure and suggest they follow safety guidelines.

Answer

Laugh at them for making a mistake

Answer

Report them to the teacher immediately

Answer

Ignore it and continue with your work

Question 17

Which of the following items is not recommended to have in the laboratory?

Accepted Answer

Food and beverages

Answer

Safety equipment

Answer

Chemicals

Answer

Protective clothing

Question 18

Why is it important to tie back long hair while working in the lab?

Accepted Answer

To prevent the hair from catching fire or getting caught in equipment.

Answer

It makes it easier to wear goggles

Answer

It looks more professional

Answer

It helps you see better

Question 19

What should you do if you spill a chemical on your skin during a lab experiment?

Accepted Answer

Immediately wash the area with soap and water for at least 15 minutes.

Answer

Apply vinegar to the area

Answer

Use a paper towel to wipe it off

Answer

Ignore it and continue working

Question 20

What personal protective equipment (PPE) is essential when working with chemicals in a laboratory?

Accepted Answer

Safety goggles

Answer

A baseball cap

Answer

Regular glasses

Answer

Flip-flops

Question 21

When should you wear a lab coat in the laboratory?

Accepted Answer

Whenever you are handling chemicals or conducting experiments.

Answer

Just when you feel like it

Answer

When mixing food and chemicals

Answer

Only when working with hot equipment

Question 22

What should you do if you accidentally break a piece of glassware in the lab?

Accepted Answer

Inform your teacher or lab supervisor immediately and follow proper cleanup procedures.

Answer

Try to clean it up with your bare hands

Answer

Leave it and ignore it

Answer

Sweep it into a trash can without notifying anyone

Question 23

Which of the following behaviors is considered unsafe in a laboratory setting?

Accepted Answer

Running in the lab while carrying equipment.

Answer

Reading instructions before starting an experiment

Answer

Walking carefully while holding materials

Answer

Wearing closed-toe shoes in the lab

Question 24

What should you do before starting a lab experiment?

Accepted Answer

Review the lab procedure and safety guidelines thoroughly.

Answer

Ask a classmate to explain the lab to you

Answer

Start experimenting without any preparation

Answer

Check your phone for instructions

Related quizzes

Related quizzes