When we use "which" and "that" as word connection ?
# I use an up-to-date gadget which is given by my Mom

# I use an up-to-date gadget that is given by my Mom

Which one more appropriate to use ?

Question

When we use "which" and "that" as word connection ?
# I use an up-to-date gadget which is given by my Mom

# I use an up-to-date gadget that is given by my Mom

Which one more appropriate to use ?

Answer

In that situation - either is fine.
Although - you have your grammar a bit wrong. You should use past tense, and you missed out the subject of the sentence.

I use an up-to-date gadget which was given to me by my Mum
 I use an up-to-date gadget that was given to me by my Mum
 I use an up-to-date gadget that my Mum gave me

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