The Blue Color in a Well-Known Test for the Presence

question 19

Multiple Choice

The blue color in a well-known test for the presence of starches is due to

• A) the formation of crosslinks between molecules of starch, caused by the addition of Cu²⁺
• B) the reaction of the silver-ammonia complex ion with the hydroxyl groups of the starch
• C) the formation of a complex between iodine and amylose
• D) none of these

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Definitions:

Direct Labor

The wages paid to workers who are directly involved in the production of goods or services.

Manufacturing Overhead

Factory overhead expenses that arise during the production process of a product.

Accounts Receivable

The money owed to a business by its customers for goods or services that have been delivered but not yet paid for.

Step-Variable Cost

Costs that are fixed over a small range of activity but can change with significant changes in the volume of activity.