Find out the wrong applications of the underlined word. (i) The journalist's exposé revealed the corrupt practices of the company. (ii) He had to expose the film to sunlight to develop the photographs. (iii) The criminal tried to expose his identity during the trial.

Explanation: The underlined word is **expose**. Expose means to reveal something, or to subject to conditions (like light). (i) The journalist's exposé **revealed** the corrupt practices. (Correct use of the related noun 'exposé' and the underlying meaning). (ii) He had to **expose** the film to sunlight. (Correctly used to mean to subject to light). (iii) The criminal tried to **expose** his identity. (Incorrect use). A person's identity is usually 'concealed' or 'hidden', and a criminal would try to **conceal** or **hide** it. If he's already exposed, he might try to **protect** or **conceal** it. If the meaning is to reveal his identity, the phrase 'tried to expose' is awkward; 'tried to reveal' or 'tried to conceal' would be better. The note says 'expose' in (iii) does not have the proper usage. Therefore, (iii) is the wrong application.