AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

i. The number of hydrogen bonded water molecules in copper sulphate pentahydrate is one. CuSO4.5H2O has five molecules of water of crystallization. Four molecules of water arecoordinated with Cu2+ and remaining one molecule of water coordinates through hydrogen bonding as shown below: ii. Non-stoichiometric hydrides are formed by La and Zr.
Examples are LaH2,LaH3,ZrH2
iii.In H2O, each oxygen atom is linked to four hydrogen atoms.
Therefore, statements (i) and (ii) are correct.