The esterase enzyme belongs to which of the following classes?

Which of the following statements is inconsistent with the properties of enzymes?

Which of the following statements is correct regarding enzymes?

$S$ - Statement: Ligases are enzymes that catalyze the linking of two compounds together.
$R$ - Reason: Isomerases are enzymes that catalyze the inter-conversion of optical,geometric,or positional isomers.

$A$ : Non-competitive inhibitors have no effect on $V_{max}$.
$R$ : In non-competitive inhibition,inhibitor and substrate bind at same sites on the enzyme.

Maltose $+$ $H_2O$ $\to$ Glucose $+$ Glucose. Which enzyme is responsible for this reaction?