PRAXIS II: Chemistry Exam Prep

9 Questions | By Gregorynaomi | Updated: Mar 20, 2022 | Attempts: 123

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Chemistry has several parts which ranges from the organic to the inorganic and the inorganic. It covers the concept of composition, properties as well as the decomposition of matter. Interestingly, bases, acids and salts form the basis of most chemistry products. How much of this simple facts do you know?

Questions and Answers

1.

Which of these is absent in an hydrocarbon?
- A.
  
  Hydrogen
- B.
  
  Nitrogen
- C.
  
  Oxygen
- D.
  
  Carbon
2.

What term describes elements in different physical forms?
- A.
  
  Electrovalency
- B.
  
  Hydrocarbons
- C.
  
  Isotopy
- D.
  
  Allotropy
3.

Which of these is odd in chemistry?
- A.
  
  Electronegativity
- B.
  
  Radioactivity
- C.
  
  Bonding
- D.
  
  Entropy
4.

What separation technique involves colours?
- A.
  
  Decantation
- B.
  
  Distillation
- C.
  
  Filtration
- D.
  
  Chromatography
5.

What separation method is best for mixture of solids of different sizes?
- A.
  
  Filtration
- B.
  
  Distillation
- C.
  
  Fractional distillation
- D.
  
  Sieving
6.

Which of these is not electronegative?
- A.
  
  Sodium
- B.
  
  Bromine
- C.
  
  Oxygen
- D.
  
  Florine
7.

What is the valency of sodium?
- A.
  
  -1
- B.
  
  3
- C.
  
  -2
- D.
  
  1
8.

Which of these is not an inert, nibke gas element?
- A.
  
  Argon
- B.
  
  Oxygen
- C.
  
  Krypton
- D.
  
  Xenon
9.

What is the temperature at which a liquid turns to gas called?
- A.
  
  Breaking point
- B.
  
  Gaseous point
- C.
  
  Melting point
- D.
  
  Boiling point