I am traveling in a train a non Muslim is sitting in front of me ,I tell him about Islam and he asks me for the Quran and he is napak( can not touch the Quran) so what should I do at that time because there is a hope that he may convert to Islam if I help him.
Scholars have difference of opinions about this.
Many scholars say you need to do Wudu Before touching the quran. And the reference is for that :
[Qur’an, Surat al-Waqi`a: 79]
“None can touch it except the pure.”
Another opinion is, this ayah is talking about Preserved Tablet (al-lawh al-mahfooz). none can touch it except the pure is referring to the angels.
So the Quran can be touched without Wudu'. It is not compulsory/you do not have to make wudu to read the Quran. However to be on safe side we should do wudu before touching the quran.
In case of giving Quran (Translation With Arabic) to the non-Muslims -
I would go with the scholars who said the verse is about al-lawh al-mahfooz. And The prophet Muhammad saw has sent letters to non-Muslims to give them dawah, Quranic verses were also included in those letters. And Allah has sent the Quran for All Mankind. So you can give the Quran to non-Muslims to give dawah to them.
Watch this video for more information about this.
Only the qur'anic text (Arabic - only and without any additions) has certainly the ruling of purity which all other posts require:
None touch it except the purified. (56:79)
And this text which is written or printed in hardcover is stirctly speaking a moshaf not the qur'an!
There's basically nothing hindering you from reaching out a printed copy of the qur'an including a translation or any kind of different text (like tafssir).
It might be better to avoid this if possible as the matter might still be a controversial topic among scholars. You may share a pure translation or translation of the meanings of the qur'an instead. However in that case you should be as certain as possible that this translation is one approved and accepted by Muslims.
For further information refer to:
Are non-Muslims allowed to touch an English translation of the Quran?
Can Muslims allow non-Muslims to touch mushaf?
Can we complete quran by reading from book and then from device