CHAPTER 1 - 1.5 SCIENCE QUIZ

Which of the following is not a correct safety rule?

• Follow safety laboratory rules and all instructions made by the teacher.

• Do not eat or drink in the laboratory

• Play with the fire extinguisher when there is no teacher around.

• Wear safety goggles during heating.

Identify the hazard symbol above.

• Radioactive.

• Biohazard.

• Irritant.

• Dizzy.

What is the function of the apparatus?

• To measure the volume of liquid.

• To supportapparatus during heating.

• To boil small amount of liquid.

• To contain small amount of liquid.

identify the apparatus shown.

• conical flask

• round bottom flask

• evaporating dish

• gas jar

Identify the name of the apparatus represented by the sectional diagram.

• Labo gas

• Filter funnel

• Tripod stand

• Wire gauze

The colour of non - luminous flame is

• blue

• orange

• yellow

• red

Which of the following is not a safety precaution when using a labo gas?

• Wear safety goggles during heating.

• Use luminous flame when you are not using the labo gas.

• Ice cream stick burns faster in non luminous flame.

• Open the air hole slowly to prevent strike back.

What is the final step when lighting up labo gas?

• Turn on the gas knob.

• Open the air hole slowly.

• Close the air hole.

• Light up a match.

Luminous flame is

• unsteady.

• hotter.

• hard to see.

• suitable for heating.

Which of the following apparatus is used to mix chemicals to produce gas when heating is not required?

• conical flask

• round bottom flask

• flat bottom flask

• beaker