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Recently Added Questions

  • 1
    If it has more electrons than protons
    Correct
    Wrong
  • 2
    If it has more electrons than neutrons
    Correct
    Wrong
  • 3
    If it has more protons than electrons
    Correct
    Wrong
  • 4
    If it has more protons than neutrons
    Correct
    Wrong
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Answer : 2
If it has more electrons than neutrons

Explanation :

If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.

  • 1
    Hydrogen
    Correct
    Wrong
  • 2
    Calcium
    Correct
    Wrong
  • 3
    Sodium
    Correct
    Wrong
  • 4
    Oxygen
    Correct
    Wrong
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Answer : 4
Oxygen

Explanation :

1. Which of the following calcium elements is not a component of baking soda?

2. The chemical formula of baking soda is NaHCO3, which is composed of four elements sodium, hydrogen, carbon and oxygen.

3. Baking soda is an alkaline substance used as a leavening agent in baking.

  • 1
    Boyle’s law 
    Correct
    Wrong
  • 2
    Dalton’s law 
    Correct
    Wrong
  • 3
    Avogadro’s law 
    Correct
    Wrong
  • 4
    Charles's law
    Correct
    Wrong
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Answer : 4
Charles's law

Explanation :

1. Charles's law (also known as volume law) is an experimental gas law.

2. The volume of a gas increases with its absolute temperature and as its absolute temperature decreases its volume also decreases.

3. Charles's law was studied in the year 1787.

  • 1
    Alcohol
    Correct
    Wrong
  • 2
    Ethane
    Correct
    Wrong
  • 3
    Ketone
    Correct
    Wrong
  • 4
    Aldehyde
    Correct
    Wrong
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Answer : 1
Alcohol

Explanation :

1. That class of compounds, which contain a functional group –OH, is called alcohol.

2. Alcohols contain a hydrogen atom and a hydroxyl group (-OH) along with a carbon atom.

3. The hydroxyl group is a polar group, which makes the alcohol soluble in water.

  • 1
    Group 2 and Group 17
    Correct
    Wrong
  • 2
    Group 1 and Group 3
    Correct
    Wrong
  • 3
    Group 1 and Group 17
    Correct
    Wrong
  • 4
    Group 2 and Group 4
    Correct
    Wrong
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Answer : 3
Group 1 and Group 17

Explanation :

1. Hydrogen matches the properties of the first group and seventh group of the periodic table.

2. Following is some additional information about the properties of hydrogen.

- Hydrogen is a highly flammable gas.

-Hydrogen is a major component of water.

- Hydrogen can be used as fuel.

Hydrogen is used in the chemical industry to make many types of products.

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