Which of the Following Statement(s) Is/are Correct

question 6

Multiple Choice

Which of the following statement(s) is/are correct?
(i) HClO₄ is an example of an oxoacid.
(ii) H₃PO₄ is a diprotic acid.
(iii) Distribution diagrams relate pH with pK_a of a polyprotic acid.

• A) Only statement (i)
• B) Statements (i) and (iii)
• C) Statements (ii) and (iii).

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Definitions:

R Square

A statistical measure that represents the proportion of the variance for a dependent variable that's explained by one or more independent variables in a regression model.

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effect on dependent variables.

Dependent Variables

Variables in an experiment or model that are expected to change as a result of changes in the independent variables.

Standard Residuals

Residuals that have been standardized to have a mean of 0 and a standard deviation of 1, useful for identifying outliers in regression analysis.