Which of these is an example of a web browser?

Google Chrome is indeed an example of a web browser. A web browser is a software application designed to access and display content on the World Wide Web. It allows users to navigate websites, view multimedia content, and interact online. Google Chrome is widely used due to its user-friendly interface, speed, and features such as tabbed browsing and various extensions.

In contrast, the other options listed are productivity applications rather than web browsers. Microsoft Word, Excel, and PowerPoint are part of the Microsoft Office suite and are used primarily for word processing, spreadsheet management, and presentation creation, respectively. These applications do not have the capabilities of browsing the web, making Google Chrome the only correct answer in this context.