The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.
1. Sublimation enthalpy
2. Ionisation enthalpy
3. Hydration enthalpy
4. Electron-gain enthalpy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMetal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the carbonates given below is unstable in air and is kept in CO2 atmosphere to avoid decomposition?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe least basic metal hydroxide among the following is-
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySome of the Group 2 metal halides are covalent and soluble in organic solvents. Among the following metal halides, the one which is soluble in ethanol is
1. BeCl2
2. MgCl2
3. CaCl2
4. SrCl2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe order of decreasing ionisation enthalpy in alkali metals is
1. Na>Li>K>Rb
2. Rb<Na<K<Li
3. Li>Na>K>Rb
4. K<Li<Na<Rb
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe solubility of metal halides depends on their nature, lattice enthalpy and hydration enthalpy of the individual ions. Amongst fluorides of alkali metals, the lowest solubility of LiF in water is due to -
1. Ionic nature of lithium fluoride
2. High lattice enthalpy
3. High hydration enthalpy for lithium ion
4. Low ionisation enthalpy of lithium ion
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAmphoteric hydroxides react with both alkalies with acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the synthesis of sodium carbonate, the recovery of ammonia is done by treating with . The by-product obtained in this process is
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen sodium is dissolved in liquid ammonia, a solution of deep blue color is obtained. The color of the solution is due to
1. Ammoniated electron
2. Sodium ion
3. Sodium amide
4. Ammoniated sodium ion
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology