Explanation

 The functional group present in aldehydes is the aldehyde group, which is represented as -CHO.

This group consists of a carbonyl group (C=O) where the carbon atom is bonded to at least one hydrogen atom. 

Explanation

Carbon monoxide has a much higher affinity for hemoglobin than oxygen,

Meaning it binds to the hemoglobin molecule more readily,

Effectively prevents oxygen from binding and reduces the blood's ability to carry oxygen. 

Explanation

 Pb₃O₄ is commonly known as red lead, and its chemical name is lead tetraoxide, as it contains both Pb(II) and Pb(IV) oxidation states.

Explanation

A register is a small, high-speed storage location within the CPU that temporarily holds data or instructions needed for immediate processing.

The control unit directs the CPU to access data from registers and use it for various operations.