Which One of the Following Is a Characteristic of Childhood

question 44

Multiple Choice

Which one of the following is a characteristic of Childhood Disintegrative Disorder?

• A)A occurrence in only females
• B)An onset before the age of 2 years
• C)A regression in motor functioning
• D)Normal language developments

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Definitions:

Molecular Formula

A concise way of expressing information about the atoms that constitute a particular chemical compound, using symbols for the elements and numerical subscripts to indicate the quantity of each atom.

NMR Spectrum

A depiction of the nuclear magnetic resonance of atoms within molecules, providing detailed information about the structure, dynamics, and environment of the molecule.

C-13 NMR

A type of nuclear magnetic resonance spectroscopy that focuses on the detection of carbon-13 isotopes to determine the structure of organic compounds.

Off Resonance Splitting

A phenomenon in NMR spectroscopy where the splitting of signal occurs away from the resonance frequency due to interactions with neighboring atoms.