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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