Which of the following matches is wrong?

Assign "$T$" for a true statement and "$F$" for a false statement,then select the correct option.
$(i)$ Most naturally occurring amino acids have $L$-configuration.
$(ii)$ $\beta-D$-ribose sugar is present in $RNA$.
$(iii)$ Amylose is a water-insoluble component made up of $\alpha-D^+$-glucose units.
$(iv)$ All monosaccharides are non-reducing sugars.

Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent?

Food preservative sodium benzoate is eliminated from the body as which of the following metabolite?

Which of the following bacteria are responsible for intestinal inflammation and urinary tract infections?

Which biological molecule in living organisms contains $Mg$ as an essential component?