Bunsen Burner

Air hole closed means __________ safety flame and air hole open means _________ heating flame.

• Yellow, blue

• Blue, yellow

• Blue, orange

• Yellow, green

During an experiment, a bunsen burner is placed on:

• Gauze mat

• The laboratory bench

• A heatproof mat

• Tripod

The different parts of a bunsen burner include:

• Barrel, collar, air hole, gas hose and base

• Barrel, collar, air vent, gase hose and base

• Barrel, collar, air vent, gas hose and bottom

• Barrel, neck, air hole, gas hose and base

When heating a test tube you.....

• Wear safety goggles, use a test tube holder and hold the test tube away from you

• Wear safety goggles, use tongs and hold the test tube close to you

• Wear safety goggles, use a test tube holder and make sure the flame is only yellow

• Wear safety goggles, use tongs and hold the test tube away from you

When you first light a bunsen burner, the flame should be:

• Yellow

• Blue

• Either

• Non existent. You shouldn't be using a bunsen burner to light things in the lab

A gauze mat.....

• Protects the tripod

• Distributes heat evenly

• Protects the laboratory bench

• Wraps around a test tube to cool it down

When you lift a bunsen burner, you hold it from the:

• Barrel

• Gas hose

• Base

• Collar

The hottest part of a flame is _________ degrees celsius.

• 150

• 15

• 15000

• 1500

First steps to using a bunsen burner:

• Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is closed

• Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is open

• Place on heat proof mat, connect gas hose to a gas tap and light the bunsen burner

• Place on the bench, connect gas hose to a gas tap and make sure the air hole is open

A mixture of __________ and __________ burn at the top of the barrel to produce a flame

• Air, carbon dioxide

• Gas, carbon dioxide

• Gas, air

• Air, helium