Three of the following four words are alike in a certain way and one is different.
Pick the odd word out.

Duster, Chalk and blackboard are the parts of stationery items which means all of the three options comes under the category of stationery whereas stationery itself is a term which comprise of  all wiriting,study or office materials.All other items comes under this category hence option 2 is the correct answer as stationery is different from  other 3 options.

By: Himani Bihagra