Find out that word, the spelling of which is wrong.

The correct answer is C. Paladium.

Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare, silvery-white, malleable and ductile

metal. It is a member of the platinum group in the periodic table and is one of the least reactive metals. Palladium is used in catalytic converters, jewelry, dentistry, and electronics.

The

other three options are spelled correctly.

• Permissible means allowed or permitted.
• Pneumatic means relating to or using air or gas.
• Peasantry is the social class of peasants.