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She finds it boring at home.

The 'it' above refers to the prepositional phrase at the end. Is it grammatically right?

I have asked about it because it is seldom seen in any writing, formal or informal.

Thank you.
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The sentence is absolutely correct, natural, idiomatic, and register neutral.

I suspect the "it" is the dummy it, as in "It's raining outside."
Comments  
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I don't think it is a dummy 'it' but a pronoun.
Rahul2689I don't think it is a dummy 'it' but a pronoun.

But dummy 'it' is a pronoun! Avangi's post is correct.

BillJ
sorry yes here 'it' is a dummy .I did not read the sentence correctly

thank you for correcting
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