Decide Whether Each of These Statements Is True (T) or False

question 5

Multiple Choice

Decide whether each of these statements is True (T) or False
An a.c. circuit has a pure resistor in parallel with a pure inductor.
(i) The current through the inductor lags behind the supply voltage by 90º.
(ii) The current through the resistor is in phase with the supply voltage.

• A) (i) T (ii) T
• B) (i) T (ii) F
• C) (i) F (ii) T
• D) (i) F (ii) F

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Definitions:

Aldaric Acid

A type of sugar acid obtained by the oxidation of both the aldehyde and primary alcohol groups of an aldose.

Ruff Degradation

A chemical process used to shorten the carbon chain of sugars by one carbon atom, involving the oxidation of an aldose sugar to the corresponding aldonic acid, followed by its decarboxylation.

D-aldopentoses

A type of sugar containing five carbon atoms, including an aldehyde group at the first carbon.

D-aldotetrose

A simple sugar (tetrose) in the D-configuration with an aldehyde group, part of the carbohydrate family.