이것 책상이다 = This is a desk.
I have just consulted my dictionary and it said as follows.
이 = this (it may be a noun or pronoun)
것 = thing (it is a noun)
So 이것 = this thing.
I am wondering if Korean grammar is similar to English or not. As for English:
이 = this (it may be an adjective or determiner)
것 = thing (it is a noun)
In Korean, can 이 also be considered as an adjective in that sentence?