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Some 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 ______.

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प्रश्न

Some 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 ______.

विकल्प

  • BeCl2

  • MgCl2

  • CaCl2

  • SrCl2

MCQ
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उत्तर

Some 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 BeCl2.

Explanation:

Due to small size, high electronegativity and high ionization enthalpy of Be, BeCl2 is covalent and hence most soluble in organic solvents such as ethanol.

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अध्याय 10: The s-block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १२६]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 11
अध्याय 10 The s-block Elements
Multiple Choice Questions (Type - I) | Q 7 | पृष्ठ १२६

संबंधित प्रश्न

Discuss the general characteristics and gradation in properties of alkaline earth metals.


Which one of the alkaline earth metal carbonates is thermally the most stable?


Which of the following has the highest hydration energy


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


Discuss briefly the similarities between beryllium and aluminium.


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.


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


Identify the correct formula of halides of alkaline earth metals from the following.

(i) BaCl2.2H2O

(ii) BaCl2.4H2O

(iii) CaCl2.6H2O

(iv) SrCl2.4H2O


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.


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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.


Alkaline earth metals show ______. 


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


Given below are two statements:

Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame.

Statement II: Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame.

In the light of the above statements, choose the most appropriate answer from the options given below.


MgBr2 and Mgl2 are soluble in acetone because of ______.


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


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