Question

The overall tone of the passage is closest to being ___________

• A. a factual presentation of a new scientific process.
• B. an excited look at the discovery of a new scientific process.
• C. a cautious look at the discovery of a new scientific process.
• D. an opinionated look at the discovery of a new scientific process.

Answer 1

Answer: (A)

a factual presentation of a new scientific process.

The passage mentions the facts related to the newly developed hydrogen-making catalyst and explains the related concepts and processes such as aqueous-phase reforming (APR).

Therefore it can be said that the passage is a factual presentation of a new scientific process.

The tone of the entire passage is objective and does not show any bias or excitement. Also, the author gives no reason to suspect that something in the new process might be missing, therefore the tone is not cautious.

Therefore option A is the correct answer. Whereas other options are not relevant.