None of which or none of them.

[Ishmam]

1. I have had lots of worries in my life, none of which came true.
2. I have had lots of worries in my life, none of them came true.
3. I have had lots of worries in my life, some of which came true.
4. I have had lots of worries in my life, some of them came true.
5. I have had lots of worries in my life, most of which came true.
6. I have had lots of worries in my life, most of them came true.

As 'worries' is a plural noun, it should take plural object them. In my view, sentence 2, 4, 6 are correct here. My question is can we use 'which' for plural noun? And also which sentences are correct here?

 

[emsr2d2]

Yes, you can use "which" for plural nouns. However, I don't find any of your sentences natural. We don't really refer to worries "coming true" or not. Try changing "worries" to "concerns" and then using the correct verb form of "to be justified" at the end.

 

[Ishmam]

how can I remove comma splices from sentence 2, 4, 6? Would you please write correct version of sentence 2, 4, 6?

 

[emsr2d2]

When we say there's a comma splice, the easy fix is to change a comma to a semi-colon. With that information, you should be able to correct them yourself. Try it now.