Which of the Following Statement(s)is (Are)true About a Compound That

question 9

Multiple Choice

Which of the following statement(s) is (are) true about a compound that has a molecular ion peak in its mass spectrum at mass 69 and shows a prominent peak in its IR spectrum at 2250 cm^-1?

• A)The compound has a molecular mass of 70.
• B)The compound contains a C=O group.
• C)The compound contains a cyano or alkyne group.
• D)Both (The compound has a molecular mass of 70)and (The compound contains a C=O group)are true statements.
• E)Both (The compound has a molecular mass of 70)and (The compound contains a cyano or alkyne group)are true statements.

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Definitions:

Refusing

The act of denying or rejecting a proposal, request, or command.

Laughing

An involuntary response to certain external or internal stimuli, often associated with amusement, joy, or relief.

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The process by which children absorb and integrate new information and experiences into their existing cognitive structures or schemas.

Months

units of time in the calendar, typically used to measure periods of about 30 days long, which together constitute a year.