Itc eligibility on rcm paid on gta services

Hii X, a registered proprietor, engaged in business of exempted and taxable goods. He purchases exempted goods worht 5 Lakh and pays 1 lakh for transportation to gta. Q1. Whether RCM is to be paid @ 5% by X? Q2. Whether ITC of this RCM can be availed and this can be used for other taxable supplies? Q3. when this rcm is to be paid to govt.? please suggest. thanks