From Valence Bond Theory , What Is the Distinguishing Characteristic

question 10

Multiple Choice

From valence bond theory , what is the distinguishing characteristic between a sigma bond and a pi bond ?

• A) A pi bond occurs when two orbitals overlap in a head to head fashion whereas a sigma bond results when two parallel orbitals overlap with a side-on interaction.
• B) A sigma bond occurs when two orbitals overlap in a head to head fashion whereas a pi bond results when two parallel orbitals overlap with a side-on interaction.
• C) Four electrons reside in a pi bond whereas two electrons reside in a sigma bond.
• D) Two electrons reside in a pi bond whereas four electrons reside in a sigma bond.
• E) A sigma bond results when both atoms involved in the bond donates one electron each towards the covalent bond whereas a pi bond results when one atom donates both electrons and the other atom donates no electrons towards the covalent bond.

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Definitions:

Tenure-Track

An academic employment path that leads to tenure, which is a permanent position, typically requiring a probationary period of several years.

Probability

The measure quantifying the likelihood or chance that a particular event will occur, often expressed as a number between 0 and 1.

Null Hypothesis

The null hypothesis is a type of hypothesis used in statistics that proposes no statistical significance exists in a set of given observations, serving as the default assumption until evidence suggests otherwise.

Level of Significance

A threshold used in statistical tests to determine if the observed data sufficiently deviate from a null hypothesis.