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Which of the following compounds is covalent? (2019)

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Question: Which of the following compounds is covalent? (2019)

Options:

  1. NaCl
  2. MgO
  3. H2O
  4. CaO

Correct Answer: H2O

Solution:

H2O is a covalent compound formed by the sharing of electrons between hydrogen and oxygen atoms.

Which of the following compounds is covalent? (2019)

Practice Questions

Q1
Which of the following compounds is covalent? (2019)
  1. NaCl
  2. MgO
  3. H2O
  4. CaO

Questions & Step-by-Step Solutions

Which of the following compounds is covalent? (2019)
  • Step 1: Understand what a covalent compound is. A covalent compound is formed when two or more atoms share electrons.
  • Step 2: Identify the elements in the compound H2O. It consists of hydrogen (H) and oxygen (O).
  • Step 3: Check how hydrogen and oxygen bond. Hydrogen has 1 electron and needs 1 more to be stable, while oxygen has 6 electrons and needs 2 more.
  • Step 4: See how they share electrons. In H2O, each hydrogen atom shares its 1 electron with oxygen, and oxygen shares its electrons with hydrogen.
  • Step 5: Conclude that since H2O is formed by sharing electrons, it is a covalent compound.
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