Which of the Following Statement(s) Is (Are) True About

question 8

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.

Understand the molecular changes that occur upon receptor activation, such as GDP replacement with GTP or the entry of sodium ions into the cell.

Understand and perform multiplication of fractions and whole numbers.

Calculate total quantities from combined individual quantities in real-world contexts.

Understand and perform the reduction of products to their lowest terms.

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