The higher the temperature required to decompose something, the more thermally stable it will be. This is due to a decrease in the bond dissociation enthalpy (H-E) of hydrides on moving down the group. Add your answer and earn points. Thermal stability order of CaO2 SrO2 BeO2. Paiye sabhi sawalon ka Video solution sirf photo khinch kar. You can specify conditions of storing and accessing cookies in your browser. Asked by ashutosh25807 28th February 2018, 8:32 PM. JEE Main 2015: The correct order of thermal stability of hydroxides is: (A) Ma(OH)2 < Sr(OH)2 < Ca(OH)2 < Mg(OH)2 (B) Ba(OH)2 < Ca(OH)2 < Sr(OH)2 < Mg In context with the industrial preparation of hydrogen from water gas (CO + H2), which of the following is the correct statement? Thermal stability increases down the group due to the decrease in the charge density of the metal cation. The correct order of thermal stability of hydroxides is: (a) Ba (OH)2 < Ca (OH)2 < Sr (OH)2 < Mg (OH)2. Doubtnut is better on App. Be, Mg and Ca present in second group and K present in the first group. a) The thermal stability of hydrides decrease on moving down the group this is because of decrease in the bond dissociation enthalpy of hydrides.H2O>H2S>H2Se>H2Te>H2Po b) Reducing character:All hydrides of group 16 elements, except H2O, are reducing agent.The reducing power of these hydrides increase in going from H2S to H2Te, which may be due to increase in the size of the atom and hence … The correct order of the thermal stability of hydrogen halide is …………Â, Choose the correct order for the given properties. So, as the thing goes, Lithium forms oxides(M2O) one oxygen balanced by two lithium atoms. HF > HCl > HBr > HI. The thermal stability of hydrides decreases on moving down the group. Thermal stability of carbonates increases in a group as we move from top to bottom and decreases in a period as we move from left to right. asked Apr 11, 2018 in Chemistry by Golu (106k points) p - block element +1 vote. Dec 01,2020 - The correct order of the thermal stability of hydrogen halides (H – X) isa)HI > HCI < HF > HBrb)HCI< HF > HBr < HIc)HF > HCI < HBr > HId)HI < HBr > HCI < HFCorrect answer is option 'C'. In LiOH , NaOH , KOH , CsOH CORRECT ORDER OF THERMAL STABILITY IS ? When is passed through solution of alkaline metal hydroxides - wherein . Answer. 3:56 1.7k LIKES. The correct order of stability of hydrides of alkali metals is . The order of thermal stability of hydroxides is Get the answers you need, now! rishikakasturi is waiting for your help. Larger cations stabilize larger anions. Generally increases down the group. | EduRev NEET Question is disucussed on EduRev Study Group by 202 NEET Students. Thermal Stability is the decomposition of a compound on heating. In group1,it is found that the thermal stability of hydroxides,carbonates,nitrates sulphates etc. Know of a thumb rule. Some hydroxides such as 3d metal's show different colours. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. But my question is, hydroxide is a small anion so it should be stabilized by | EduRev JEE Question is … Group 1 or Group 2 compounds, the thermal stability increases down the group as the ionic radius of the cation increases, and its polarising power decreases. Hence, we have order of thermal stability as H 2 O > H 2 S > H 2 Se > H 2 Te > H 2 PQ (d) Ba (OH)2 < Sr (OH)2 < Ca (OH)2 < Mg (OH)2. neet. The decreasing stability of the hydrogen halide is also reflected in the values of dissociation energy of the H-X bond $\begin{matrix}H-F&H-Cl&H-Br&H-I\\ 135\,kcal\,mol ^{-1}&103\,kcal\,mol ^{-1}&85\,kcal\,mol ^{-1}&71\,kcal\,mol ^{-1}\end{matrix}$ Explanation: In all cases, for a particular set of e.g. (c) Mg (OH)2 < Ca (OH)2 < Sr (OH)2 < Ba (OH)2. so, the correct order of thermal stability of given carbonates is: BeCO 3 < MgCO 3 < CaCO 3 < K 2 CO 3. stability is H F > H C l … The oxides of calcium, strontium, and barium are basic and the hydroxides are strongly basic. It describes and explains how the thermal stability of the compounds changes as you go down the Group. The correct order of increase thermal stability of {K_2}C{O_{3,}}MgC{O_{3,}}CaC{O_3} and BeC{O_3} is This is because down the group, size of the element (M) increases, M-H bond length increases and thus, stability of M-H bond decreases so that it can be broken down easily. Thus stability of alkaline earth metal hydroxides decreases with decrease in lattice enthalpy as the size of alkali earth metal cations increases down the group.Jun 28, 2019, This site is using cookies under cookie policy. The area of the moon's surface wherethere is no evidence of the water is called​, apply chemical in copper coin needle repulsive and throw away of coin.. what is the name of chemical?​, Can someone who is really good at chemistry do this please? The effect of heat on the Group 2 carbonates All the carbonates in this group undergo thermal decomposition to the metal oxide and carbon dioxide gas. ... To compensate for that, you have to heat the compound more in order to persuade the carbon dioxide to break free and leave the metal oxide. The correct order of the thermal stability of hydrogen halides (H–X) is. 1 answer. Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)? Down the group, polarizing power of cation decreases, thus bond is more ionic & thus thermal stability increases. 4) Anhydrous MgCl 2 is used in the electronic extraction of magnesium.. Solubility and thermal stability of Oxo salts. Can you explain this answer? In other words, as you go down the Group, the carbonates become more thermally stable. please explain in details​. The correct order of thermal stability of hydrogen halide. Add your answer and earn points. The thermal stability of the hydrogencarbonates. The salt containing one or more atoms of oxygen such as oxides ,hydroxides ,carbonate ,bicarbonate ,nitrite ,nitrate ,sulphates ,oxalates and phosphates are called oxo salts. M g(OH)2. Stability of ionic compounds decreases with decrease in lattice enthalpy. So the thermal stability of hydrides decreases down the group. Therefore, rishikakasturi rishikakasturi 4 hours ago Chemistry Secondary School The order of thermal stability of hydroxides is 1 See answer rishikakasturi is waiting for your help. The order of thermal stability of hydroxides is, solve if for x and y x + 2y = 3​ come ids-zkcw-nis, do join fast id 664 896 0789 pass 12345​. Thus stability of alkaline earth metal hydroxides decreases with decrease in lattice enthalpy as the size of alkali earth metal cations increases down the group. The correct option is: (a) BeCO 3 < MgCO 3 < CaCO 3 < K 2 CO 3. The effect of heat on the Group 2 carbonates. so, the correct order of thermal stability of given carbonates is:BeCO3 < MgCO3 < CaCO3 < K2CO3Be, Mg and Ca present in second group and K … what is the correct order of thermal stability of 1 answer below » what is the correct order of thermal stability of group 1 elements? Sodium forms peroxides(M2O2) one Oxygen needs one sodium. 3) Anhydrous CaCl 2 is also used as a desiccant ( drying agent in laboratory). Some metal hydroxides are amphoteric compounds and they react with both acids and alkalis to give soluble compounds. ... What is the correct order of thermal stability of carbonates of alkaline earth metals? On moving down the group, there is a decrease in the bond dissociation enthalpy(H-E) of hydrides with increase in atomic size. It explains how the thermal stability of the compounds changes down the group. Explanation: Stability of ionic compounds decreases with decrease in lattice enthalpy. The thermal stability of hydrides of group 16 elements decreases down the group. 7. (b) Mg (OH)2 < Sr (OH)2 < Ca (OH)2 < Ba (OH)2. Which is the correct thermal stability order of `H_(2)E(E=O,S,Se,Te` and `Po)`?Previous Year Question for NEET by Doubtnut. 34.6k SHARES. All the carbonates in this Group undergo thermal decomposition to give the metal oxide and carbon dioxide gas. i.e. The correct order of thermal stability of hydroxide is. HF > HCl > HBr > HI is the correct order of the thermal stability of hydrogen halides. As we move down the group in hydrogen halides the thermal stability decreases due to decrease in bond strength.So the correct order of thermal. (A) MgSO4 < SrSO4 < BaSO4 : Thermal stability order. more basic hydroxides down the group also thermal stability of hydroxide increases down the Answer. For example, HDPE, MAgPP, epoxy, polyester, and starch matrix sustain at 525°C, 450°C, 400°C (Bansal and Agarwal, 1984), 245–289°C (Bora et al., 2013) and 250°C respectively.Whereas jute, coir and banana fiber are thermally stable at 25–250°C. 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