Which of the following mechanisms accounts for the acid-base reaction of ethylmagnesum bromide with acetylene to give acetylide anion? 
Definitions:
Standard Deviation
A statistical measure that quantifies the dispersion or variation of a set of numerical data from its average.
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Financial assets or resources that are available for a specific purpose or investment.
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A measure of a stock's volatility in relation to the overall market, indicating its risk level in comparison to the market average.
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