ThatQuiz Test Library Take this test now
PES SS 2 Chemistry 2nd Term Exam (Obj) 2025/2026
Contributed by: School
  • 1. Solubility is expressed in ______
A) mol/dm-3
B) g/mol
C) dm3
D) mol/dm3
  • 2. A solubility curve shows _____
A) The variation of solubility of a substance with volume
B) The variation of solubility of a substance with temperature
C) How much substance is dissolved
D) The way a solute dissolves
  • 3. Which of the following has two geometric isomers?
A) But-2-ene
B) Butane
C) But-2-yne
D) But-1-yne
  • 4. Geometric isomer is common among ____________
A) Alkynes
B) Alkenes
C) Alkanes
D) Alkanols
  • 5. The molecular formula for glycerol is____
A) C2H4
B) C3H5(OOCR)_3
C) RCOONa
D) C3H5(OH)_3
  • 6. Which of the following is not needed in the laboratory preparation of soap?
A) Distilled water
B) Palm oil
C) Salt solution
D) Baking soda
  • 7. Which of the following is not a type of soap?
A) Water soap
B) Toilet soap
C) Hard soap
D) Transparent soap
  • 8. When soap is added to dirty fabric, _____ penetrate greasy dirt.
A) Hydrophilic heads
B) Hydrophobic tails
C) Soap foam
D) Soap molecules
  • 9. ____ remain suspended in water and are rinsed away while washing.
A) Micelles
B) Hydrophilic heads
C) Soap molecules
D) Hydrophobic tails
  • 10. Detergents are made from ____
A) Baking soda
B) Dried soaps
C) Petroleum hydrocarbons
D) Ashes
  • 11. Which of the following is not a use of soap?
A) Emulsifying oils
B) Shaving creams
C) Shampoos
D) Bathing
  • 12. Which of the following is not a use of detergents?
A) Shampoos
B) Laundry powders
C) Shaving creams
D) Dishwashing liquids
  • 13. The mass of an alpha particles is _________
A) No mass
B) 1/1840 unit
C) 4 units
D) 6 units
  • 14. The electrical charge on beta particles is ________
A) -1
B) +1
C) +2
D) It has no charge.
  • 15. The relative penetration of gamma rays is __________
A) 100
B) 1
C) 10 000
D) 10
  • 16. Half-life shows ____ a radioactive substance decays.
A) Why
B) If
C) How fast or slow
D) How much
  • 17. Which of the following is not a halogen?
A) Chlorine
B) Tin
C) Fluorine
D) Iodine
  • 18. Iodine is a____
A) Pale yellow gas
B) Grey crystalline solid
C) Greenish yellow gas
D) Reddish brown liquid
  • 19. Alkali metals react with oxygen to produce ____
A) Oxygen gas
B) Oxides, peroxides, superoxides.
C) Trioxonitrates
D) Hydrogen gas
  • 20. Which of the following can be used in producing red fireworks?
A) Calcium
B) Radium
C) Magnesium
D) Strontium
  • 21. Alkaline earth metals react with acids to release ___________
A) Oxygen gas
B) Carbon dioxide
C) Nitrogen gas
D) Hydrogen gas
  • 22. Transition elements are ____ elements.
A) d-block
B) f-block
C) s-block
D) p-block
  • 23. The following are examples of transition elements except ____
A) Rubidium
B) Iron
C) Nickel
D) Cobalt
  • 24. The general electronic configuration for transition elements is ___________
A) 1s2 2s2
B) They do not have electronic configuration
C) (n-1)d1-10ns0-2
D) (n-2)d1-10ns0-1
  • 25. The following are oxidation states of chromium except ________
A) -2
B) +2
C) +6
D) +3
  • 26. When metals are extracted from ores, they are not usually ____
A) Solid
B) Much
C) Pure
D) Big
  • 27. Which of the following is most abundant in the universe ( ~70% of universe's mass)?
A) Oxygen
B) Hydrogen
C) Carbon
D) Nitrogen
  • 28. Hydrogen burns in oxygen with a ____ flame to form water.
A) Red
B) Pale yellow
C) Pale blue
D) Orange
  • 29. Which of the following reduces metal oxides to metals?
A) Water
B) Hydrogen
C) Nitrogen
D) Carbon dioxide
  • 30. Which of the following reacts slowly with cold water?
A) Nitrogen
B) Carbon
C) Hydrogen
D) Calcium
  • 31. Alkaline earth metals react with hydrogen to form____
A) Oxides
B) Oxygen gas
C) Ionic halides
D) Hydrogen gas
  • 32. Which of the following is used in making ceramics?
A) Barium
B) Strontium
C) Magnesium
D) Aluminium
  • 33. Which for the following can be used for cancer treatment?
A) Chromium
B) Argon
C) Iron
D) Radium
  • 34. Which of the following can be used in making fertilizers?
A) Radium
B) Calcium
C) Iron
D) Argon
  • 35. Which of the following is used in making building materials?
A) Magnesium
B) Potassium
C) Calcium
D) Argon
  • 36. Unstable atoms are called____
A) Rays
B) Nuclei
C) Particles
D) Radioisotopes
  • 37. Which of the following shows a solubility curve with a sharp break at 36oC?
A) Na2SO4
B) NaCl
C) HCl
D) H2SO4
  • 38. Early detergents contained ____ hydrocarbons.
A) Branched
B) Cyclic
C) Chained
D) Straight
  • 39. Modern detergents are made from____ hydrocarbons.
A) Chained
B) Linear
C) Branched
D) Cyclic
  • 40. Soaps are____ biodegradable.
A) Not
B) None of the above
C) Partly
D) Fully
Created with That Quiz — where test making and test taking are made easy for math and other subject areas.