The following are some statements related to IIA group metalsI) The reaction with water increases from Be to BaII) The ionic nature of hydrides decreases from Be to BaIII) The thermal stability of the peroxides increases with increase in cationic sizeIV) The solubility of halides increases from Mg to BaThe correct statements are of

As electropositivity of Metal increases reaction with water increases,  As the size of central metal increases electropositivity (or) metallic nature increases and hence ionic nature of hydride increases BeH2 & MgH2's are covalent hydrides Ca,Sr,BaH2 are ionic hydridesAs the size of cation increases stability of peroxides increasesSince, a large size cation [Ba+2] will stabilise the larger size anion [O2-2]