Which Molecule Is Amphoteric

question 61

Multiple Choice

Which molecule is amphoteric?

• A) CH₃NH₂
• B) CH₃OH
• C) CH₃COOH
• D) H₂SO₄
• E) NaOH

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Definitions:

Expected Cell Counts

In chi-squared tests, these refer to the theoretically predicted frequencies of observations in the categories of a contingency table under the null hypothesis.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or in the calculation after estimating certain parameters.

Contingency Table

A table used to display the frequency distribution of variables and analyze the relationship between categorical variables.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect and serves as the default or starting assumption in hypothesis testing.