Questions

The chemical name of the compound 

Cu2CO3 isCopper (i) carbonate and is also called as cuprous carbonate.

Ascent’ means upward moment and is incorrect as per the meaning of the sentence. ‘Accent’ means to emphasize a particular feature; ‘Approof’ means trial, and ‘Assent’ means to give an expression of approval or agreement. Thus, ‘Ascent’ needs to be replaced with ‘Assent’ Thus, the correct formation would be, ‘My father has given his assent for my long tour’.

Rakshasa marriage is the marriage of a maiden involving her forcible abduction from her home after her kinsmen have been slain or wounded much like its practice in Khazakh and Uzbek cultures where it is still practised as a ritual.