हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.

Advertisements
Advertisements

प्रश्न

The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.

विकल्प

  • Sublimation enthalpy

  • Ionisation enthalpy

  • Hydration enthalpy

  • Electron-gain enthalpy

MCQ
Advertisements

उत्तर

Hydration enthalpy

Explanation:

Li due to its small size it has a high value of hydration enthalpy. Due to the high hydration enthalpy of Li atom, it is the strongest reducing agent in the aqueous medium.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 10: The s-block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १२५]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 11
अध्याय 10 The s-block Elements
Multiple Choice Questions (Type - I) | Q 3 | पृष्ठ १२५

संबंधित प्रश्न

Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?


The product obtained as a result of a reaction of nitrogen with CaC2 is ______.


Assertion: Generally alkali and alkaline earth metals form superoxides.

Reason: There is a single bond between O and O in superoxides.


In context with beryllium, which one of the following statements is incorrect?


Discuss briefly the similarities between beryllium and aluminium.


Substantiate Lithium fluoride has the lowest solubility among group one metal fluorides.


Beryllium halides are covalent whereas magnesium halides are ionic why?


Alkaline earth metal (A), belongs to 3rd period reacts with oxygen and nitrogen to form compound (B) and (C) respectively. It undergoes metal displacement reaction with AgNO3 solution to form compound (D). Identify A, B, C and D.


Explain the important common features of Group 2 elements.


Why alkaline earth metals are harder than alkali metals?


Discuss the trend of the following:

Thermal stability of carbonates of Group 2 elements.


Discuss the trend of the following:

The solubility and the nature of oxides of Group 2 elements.


Assertion (A): Beryllium carbonate is kept in the atmosphere of carbon dioxide.

Reason (R): Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.


An element of group 2 forms covalent oxide which is amphoteric in nature and dissolves in water to give an amphoteric hydroxide. Identify the element and write chemical reactions of the hydroxide of the element with an alkali and an acid.


Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is ______.


MgBr2 and Mgl2 are soluble in acetone because of ______.


PbCl4 exists but PbBr4 and Pbl4 do not because of ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×