Doubtnut is better on App Paiye sabhi sawalon ka Video solution sirf photo khinch kar 5.5k VIEWS. The alkali metals have the silver-like lustre, high ductility, and excellent conductivity of electricity and heat generally associated with metals. The correct order of the solubility of alkaline- earth metal sulphates in water is : The sulphates of alkaline earth metals are all white solids. All these metals have one valence electron. Correct option (b) Rb + > K + > Na + > Li + Explanation: Hydration enthalpies of alkali metal ions decreases with the increase in ionic radii as we move down the group. The trends of solubility for hydroxides and sulfates are as follows: Thus, the order for ionic mobility of ions is. Here we shall look at the solubilities of the hydroxides and sulfates of Group 2 metals. (a) Nitrates (b) Carbonates (c) Sulphates Answer: (a) Nitrates of both group 1 and group 2 elements are soluble in water because hydration energy is … 5.5k SHARES. The correct order of the mobility of the alkali metal ions in aqueous solutions Rb+ > K+ > Na+ > Li+ due to following order of hydration energy of these ions Li+ > Na+ > K+ > Rb+ and due to hydration of ion, mobility decreases. The elements are Lithium, Rubidium, sodium, Potassium and cesium. M (OH) 2 + H 2 SO 4 → MSO 4 + 2H 2 O MCO 3 + H 2 SO 4 → MSO 4 + CO 2 + H 2 O . The correct order of the solubility of alkaline-earth metal sulphates in water is: - 7941361 Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals. Sulphates. 2. is done on EduRev Study Group by NEET Students. The carbonate ion has a big ionic radius so it is easily polarized by a small, highly charged cation. Solution: The alkali metals are strong reducing agents, lithium the most and sodium the least powerful. The smaller size and the charge density increases the hydration energy of the beryllium sulphate leading to more solubility. solubility is directly proportional to difference in size As here,alkali metal fluoride so LiF,NaF,KF,RbF,CsF. The correct order of solubility of the sulphates of alkaline earth metals in water is. The correct order of solubility of the sulphates of alkaline earth metals in water is 1:23 200+ LIKES. The right order of the solubility of sulphates of alkaline earth metals is : (A) Be > Ca > Mg > Ba > Sr (B) Mg > Be > Ba > Ca > Sr (C) asked Oct 13, 2019 in S - block elements - alkali and alkaline earth metals by Rk Roy ( 63.6k points) MF 2 > MCl 2 > MBr 2 > MI 2. The correct order of solubility of alkali metal fluorides in water is . The correct order is . Doubtnut is better on App. Paiye sabhi sawalon ka Video solution sirf photo khinch kar. This page looks at the solubility in water of the hydroxides, sulphates and carbonates of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium. The correct order of increasing thermal stability of K 2 CO 3, MgCO 3, CaCO 3 and BeCO 3 is: BeCO 3 < MgCO 3 < K 2 CO 3 MgSO 4 > CaSO 4 > SrSO 4 > BaSO 4 The greater hydration enthalpies of Be 2+ and Mg 2+ ions dominate over their lattice enthalpies and therefore their sulphates are highly soluble. The correct order of solubility of the sulphates of alkaline earth metals in water is . The alkali metals have low melting points, ranging from a high of 179 °C (354 °F) for lithium to a low of 28.5 °C (83.3 °F) for cesium. The correct order of solubility of the sulphates of alkaline earth metals in water is. The solubility order of metal hydroxides is as follows: Group IA elements are called as alkali metals. A solution of K O H in water is called: View solution. Explain the trends in the solubility of carbonates , sulphates and hydroxides of alkaline earth metals. Doubtnut is better on App. In this article, we will explain the electronic configurations, ionization enthalpy, hydration enthalpy and atomic, ionic radii and other physical and chemical properties of the group one alkali metals. Simple :-In the case of S block element we will see the difference in sizeof cation and anion i.e. Therefore, smaller is the mass of hydrated species higher is the ionic mobility in the aqueous solution. Solubility: The solubility of the sulphates in water decreases down the groups i.e. The carbonates of group-2 metals and that of lithium decompose on heating, forming an oxide and carbon dioxide . The Questions and Answers of What is the solubility order of fluorides for alkaline earth metals? This discussion on What is the solubility order of fluorides for alkaline earth metals? The right order of the solubility of sulphates of alkaline earth metals is : (A) Be > Ca > Mg > Ba > Sr (B) Mg > Be > Ba > Ca > Sr (C) asked Oct 13, 2019 in S - block elements - alkali and alkaline earth metals by Rk Roy ( 63.6k points) Solubility is the maximum amount a substance will dissolve in a given solvent. Rb + > K + > Na + > Li + 5.4k SHARES. Although it describes the trends, there isn't any attempt to explain them on this page - for reasons discussed later. Stability of carbonates increases down group I (alkali) and group II (alkaline earth) metals. Alkali metals belong to the s-block elements occupying the leftmost side of the periodic table.Alkali metals readily lose electrons, making them count among the most reactive elements on earth. Group 2 The Alkali Earth Metals The majority of compounds formed by group II elements are ionic . so your answer becomes BaSO4 Mg > Ca > Sr > Ba. Hence, the order of their solubility is : L i O H < N a O H < K O H < R b O H < C s O H. Answer verified by Toppr . The solubility of alkali metal hydroxides increases from top to bottom. asked Oct 13, 2019 in S - block elements - alkali and alkaline earth metals by Rk Roy (63.6k points) The right order of the solubility of sulphates of alkaline earth metals is : … The correct order of solubility of alkali metal fluorides in water is. 5.4k VIEWS. Solubility of sulfates generally decrease as you go down a group. Lithium is the lightest metallic element. Contrary to alkali metal sulphates, beryllium sulphate is water-soluble. The correct order of the solubility of alkaline- earth metal sulphates in water is : The sulphates of alkaline earth metal are prepared by the action of sulphuric acid on metals, metal oxides ,hydroxides and carbonates. The correct order of solubility of the sulphates of alkaline earth metals in water is . Properties of Sulphates of Alkali Earth Metals. 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