Chemistry Trivia Quiz

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| By Emmmmma

Emmmmma

Community Contributor

Quizzes Created: 1 | Total Attempts: 878

Questions: 10 | Attempts: 878 | Updated: Aug 18, 2023

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Do you love chemistry? If you really love this subject, you will also like the chemistry trivia quiz we have here for you. Chemistry is all about elements, substances, and formulas. It's a subject that is either loved too much or hated too much. There is no mediocrity. As a child, you must have read chemistry, or maybe you study it now too. Let's see how much you really know. All the best to you.

Questions and Answers

1.

Which molecule is this?
- A.
  
  Propane
- B.
  
  Pentane
- C.
  
  Methane
- D.
  
  Butane
Correct Answer
A. Propane

Explanation
Propane is the correct answer because it is a molecule composed of three carbon atoms and eight hydrogen atoms. It is an alkane with the chemical formula C3H8. Propane is commonly used as a fuel for heating and cooking, as well as in industrial processes.

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6
2.

Which pH would water be?
- A.
  
  4
- B.
  
  11
- C.
  
  7
- D.
  
  9
Correct Answer
C. 7

Explanation
Water has a neutral pH of 7. This means that it is neither acidic nor basic. A pH of 4 indicates that the substance is acidic, while a pH of 11 indicates that it is basic. Therefore, the correct answer is 7, which represents a neutral pH for water.

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2
0
3.

What is the test for Oxygen?
- A.
  
  Relight a glowing splint
- B.
  
  Burn with a squeaky pop
- C.
  
  Turn lime water cloudy.
- D.
  
  Explosion occurs
Correct Answer
A. Relight a glowing splint

Explanation
Relighting a glowing splint is a test for oxygen because oxygen supports combustion. When a glowing splint is exposed to oxygen, it reignites because the oxygen present in the air reacts with the flammable material on the splint, allowing it to burn again. This reaction confirms the presence of oxygen.

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4.

What is the symbol of potassium?
- A.
  
  K
- B.
  
  A
- C.
  
  L
- D.
  
  P
Correct Answer
A. K

Explanation
The symbol of potassium is "k" because it is derived from its Latin name "kalium." In the periodic table, chemical elements are represented by symbols, and the symbol "k" specifically represents potassium.

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5.

H2O stands for
- A.
  
  Nitrogen
- B.
  
  Oxygen
- C.
  
  Iron
- D.
  
  Water
Correct Answer
D. Water

Explanation
H2O is the chemical formula for water. The "H" represents hydrogen, and the "O" represents oxygen. Therefore, H2O stands for water.

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6.

Water boils at
- A.
  
  0-degree centigrade
- B.
  
  10-degree centigrade
- C.
  
  100-degree centigrade
- D.
  
  130-degree centigrade
Correct Answer
C. 100-degree centigrade

Explanation
Water boils at 100-degree centigrade. This is the standard boiling point of water at sea level. At this temperature, water changes from a liquid state to a gaseous state, forming water vapor. It is important to note that the boiling point of water can vary depending on factors such as altitude and impurities in the water. However, under normal atmospheric pressure, water boils at 100-degree centigrade.

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7.

Electrolysis is the spitting up of an ionic compound by passing ______ electricity through it.
- A.
  
  A.C
- B.
  
  D.C
- C.
  
  Both
- D.
  
  None
Correct Answer
B. D.C

Explanation
Electrolysis is the process of breaking down an ionic compound into its constituent elements by passing an electric current through it. In this case, the correct answer is D.C (Direct Current) because electrolysis requires a continuous flow of electrons in one direction to facilitate the chemical reactions necessary for the compound to split up. Alternating Current (A.C) would not be suitable for electrolysis as it constantly changes direction, preventing the desired chemical reactions from occurring effectively. Therefore, D.C is the preferred type of electricity for electrolysis.

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8.

An ionic bridge...
- A.
  
  Completes the circuit
- B.
  
  Ends the circuit
- C.
  
  Stops the circuit
- D.
  
  None of these
Correct Answer
A. Completes the circuit

Explanation
An ionic bridge completes the circuit by allowing the flow of ions between two electrodes. It acts as a conductor, connecting the two electrodes and enabling the movement of charged particles. This ensures the continuous flow of electric current in the circuit.

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9.

Which method is being used here?
- A.
  
  Evaporation
- B.
  
  Distillation
- C.
  
  Combustion
- D.
  
  Filtration
Correct Answer
D. Filtration

Explanation
Filtration is a method used to separate solid particles from a liquid or gas by passing it through a filter medium. In this process, the solid particles are retained by the filter while the liquid or gas passes through. This method is commonly used in various industries and laboratories for purification purposes.

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10.

What is in the center of an atom?
- A.
  
  Nucleus
- B.
  
  Element
- C.
  
  Electron
- D.
  
  Sodium
Correct Answer
A. Nucleus

Explanation
The correct answer is nucleus because it is the central part of an atom. It contains protons and neutrons, which make up most of the atom's mass. The electrons, on the other hand, orbit around the nucleus in energy levels. Sodium is an element, but it is not located in the center of an atom.

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