Choose the incorrectly spelt word.

Monitour

The incorrectly spelt word is Monitour. The correct spelling is Monitor.

Here is a breakdown of the spelling of each word:

• Monitor is spelled incorrectly. It means a device that is used to observe or check something.
• Slope is spelled correctly. It means a gradual incline or descent.
• Constant is spelled correctly. It means unchanging or unvarying.
• Chemical is spelled correctly. It means a substance that is composed of two or more elements.