ICSE Class 6 Chemistry - Lab Apparatus and Equipment - Test 3 (Advanced)
1. Riya uses a beaker to take 50 mL of water, but her teacher asks her to use another apparatus for better accuracy. Which apparatus should she use?
A. Test tube rack
B. Watch glass
C. Measuring cylinder
2. Which apparatus would prevent wastage while transferring a liquid into a small bottle?
A. Funnel
B. Thermometer
C. Tripod stand
3. Why is a glass rod commonly used for stirring solutions?
A. It melts quickly
B. It is suitable for mixing liquids safely
C. It is used only for heating
4. A student has to transfer a pinch of copper sulphate crystals. Which apparatus is most suitable?
A. Dropper
B. Measuring cylinder
C. Spatula
5. During an experiment, only two drops of a liquid are needed. Which apparatus gives the best control?
A. Dropper
B. Beaker
C. Wire gauze
6. Why should test tubes containing liquids not be left lying flat on the table?
A. They become heavier
B. They may roll, spill, or break
C. They turn into beakers
7. A heated test tube must be moved from the flame. Which apparatus should be used?
A. Funnel
B. Watch glass
C. Test tube holder
8. Which apparatus provides a stable support for a vessel during heating?
A. Tripod stand
B. Dropper
C. Test tube brush
9. Why should a beaker not be placed directly on a tripod stand without wire gauze?
A. The beaker will become a solid
B. Heat may not spread evenly
C. The liquid will become invisible
10. Which statement about a laboratory thermometer is correct?
A. It is used for stirring hard solids
B. It is used to hold test tubes
C. It measures temperature
11. Which apparatus is best for heating a small amount of salt solution to dryness?
A. China dish
B. Test tube rack
C. Funnel
12. Which apparatus can be used to cover a beaker during a simple classroom experiment?
A. Dropper
B. Watch glass
C. Spatula
13. Why is a test tube brush better than fingers for cleaning a test tube?
A. It measures heat
B. It adds liquid drop by drop
C. It can clean the inner surface safely
14. A liquid suddenly splashes while mixing. Which safety equipment protects the eyes?
A. Safety goggles
B. Glass rod
C. Measuring cylinder
15. Which safety item is most useful if a few drops of liquid accidentally fall on clothes?
A. Funnel
B. Lab apron
C. Tripod stand
16. A student wants to identify a chemical by tasting it. What is the correct advice?
A. Taste only a small amount
B. Taste it after heating
C. Never taste chemicals
17. What is the safer way to smell a chemical if the teacher permits?
A. Gently waft the smell towards the nose
B. Put the nose inside the bottle
C. Drink the chemical first
18. Why should a closed test tube not be heated?
A. It becomes a measuring cylinder
B. Pressure may build up and cause danger
C. It will clean itself automatically
19. During heating, why must the mouth of a test tube point away from classmates?
A. To make the flame brighter
B. To increase the smell
C. To avoid injury from sudden splashing
20. A beaker cracks during an experiment. What should be done first?
A. Inform the teacher
B. Pick it up with bare hands
C. Continue using it