1. A π (pi) bond is the result of the overlap of two atomic orbitals; a) overlap of two parallel orbitals; b) overlap of one s and one p orbital; c) sidewise overlap of two paralle... 1. A π (pi) bond is the result of the overlap of two atomic orbitals; a) overlap of two parallel orbitals; b) overlap of one s and one p orbital; c) sidewise overlap of two parallel orbitals. 2. The maximum number of hydrogen bonds that a molecule of water can have is a) 1; b) 2. 3. Which of the following species is planar? a) NO3-; b) H2O; c) SO3^2-; d) PF3.
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The question consists of multiple items related to chemistry, including atomic orbitals, hydrogen bonding, and molecular geometry. It seeks to assess knowledge on these topics through multiple-choice questions.
Answer
1. Sidewise overlap of two parallel orbitals; 2. Four; 3. NO3-.
The correct answers are: 1. Sidewise overlap of two parallel orbitals; 2. Four; 3. NO3-.
Answer for screen readers
The correct answers are: 1. Sidewise overlap of two parallel orbitals; 2. Four; 3. NO3-.
More Information
A pi bond is formed by the sideways overlap of two parallel p orbitals. A water molecule can form up to four hydrogen bonds due to its two lone pairs and two hydrogen atoms. The NO3- ion is planar due to its trigonal planar molecular geometry.
Tips
A common mistake is confusing the geometry of molecules based on their lone pairs; remember to also consider electron pair arrangements for accurate shapes.
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