An Oxygen-Containing Compound Shows Strong IR Absorption at 1630-1780 Cm^-1

question 21

Multiple Choice

An oxygen-containing compound shows strong IR absorption at 1630-1780 cm^-1 and 3200-3550 cm^-1.What type of compound is it likely to be?

• A) An alcohol
• B) A carboxylic acid
• C) An ether
• D) A ketone
• E) An aldehyde

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Definitions:

Radial Piston Pump

A type of hydraulic pump where pistons are arranged radially around a central axis, used for high pressure and precise control applications.

Common-Rail

A diesel engine fuel injection system where the fuel is supplied to the injectors from a high-pressure accumulator common for all cylinders.

Counterbalance Valve

A valve that resists flow in one direction while permitting free flow in the other. Often connected to the outlet of a double-acting ram to support weight and prevent sudden, uncontrolled dropping.

Back Pressure

Back pressure is the resistance or force opposing the desired flow of fluids in piping systems, engines, or turbines, often deliberately used to optimize engine efficiency or control fluid movement.