How Many Distinct Signals Would Appear in the (Proton-Decoupled) ¹³C

question 102

Multiple Choice

How many distinct signals would appear in the (proton-decoupled) ¹³C NMR spectrum for the following compound?

• A) 4
• B) 5
• C) 7
• D) 8

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Definitions:

Contra Asset

An account that is used to reduce the value of a related asset, such as accumulated depreciation reducing the book value of fixed assets.

Normal Balance

The side (debit or credit) of an account that is expected to have a higher balance, indicating the side which increases the account.

Allowance Method

A financial method that estimates the value of debts unlikely to be collected by determining uncollectible accounts each period's end.

Allowance for Doubtful Accounts

A contra asset account that represents the estimated proportion of accounts receivable that may not be collectable.