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Al[BH(4)](3) contains how many 3 centere...

`Al[BH_(4)]_(3)` contains how many 3 centered `-2e^(-)` bonds.

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Tri alkyl aluminium molecules exists as dimer which contains 3 centered 2e bonds. The coordination number of bridged carbon atoms is

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NaBH_(4) is ionic compound contain BH_(4)^(-) tetrahydridoborate ion and in solid state NaBH_(4) has sodium chloride structure. Not all tetrahydridoborates are ionic. The beryllium, aluminium and transition metal borohydrides become increasingly covalent and volatile. In these type of tetrabydrido borate the BH_(4)^(-) form covalent bond with metal ion. One or more H atoms in a BH_(4)^(-) act as a bridged bond to metal, forming a three centre bond with two electrons shared by three atoms. The BH_(4)^(-) is usually in that it may fonn one two or three such three centre bonds to the metal ion when fonns covalent bond. Be(BH_(4))_(2) and AI(BH_(4))_(3) are covalent and structures are given below:

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The statements regarding Diborane are i) Diborane contains 2-centred - 3-electron bonds ii) B - H bond is formed by sp^(3)-s overlapping iii) It contains two coplanar BH_(2) groups The correct statements in above are

How many S-S bond are there in S_(2)O_(7)^(-2)

NaBH_(4) is ionic compound contain BH_(4)^(-) tetrahydridoborate ion and in solid state NaBH_(4) has sodium chloride structure. Not all tetrahydridoborates are ionic. The beryllium, aluminium and transition metal borohydrides become increasingly covalent and volatile. In these type of tetrabydrido borate the BH_(4)^(-) form covalent bond with metal ion. One or more H atoms in a BH_(4)^(-) act as a bridged bond to metal, forming a three centre bond with two electrons shared by three atoms. The BH_(4)^(-) is usually in that it may fonn one two or three such three centre bonds to the metal ion when fonns covalent bond. Be(BH_(4))_(2) and AI(BH_(4))_(3) are covalent and structures are given below: Select incorrect statement about ' Li [AIH_(4)]

AAKASH SERIES-ELEMENTS OF BORON FAMILY-ADDITIONAL PRACTICE EXERCISE (LEVEL - II LECTURE SHEET (ADVANCED))
  1. Electronic structure acquired by compounds of IIIA group elements in b...

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  2. Thallous chlorie is more stable than thallic chloride because of

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  3. Element with gaint co - valent structure is

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  4. Which of the following is used in high temperature thermometry ?

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  5. The maximum co - valancy of aluminium is '6' where as that of boron is...

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  6. Which element reacts with acids as well as alkalies.

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  7. Which statements are correct. (1) I.P of 'Ga' is greater than 'Al'...

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  8. The electrical conductivity of aluminium is twice that of copper on th...

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  9. 'Al' and its alloy can be given shapes of

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  10. Which of the following minerals contain aluminium ?

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  11. Aluminium becomes passive in

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  12. The chief impurity not present in bauxite is

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  13. AlCl(3) is an electron deficient compound but AlF(3) is due to

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  14. Which of the following element donot form carbide

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  15. Al(2)(SO(4))(3)+NH(4)OH rarr X,X is

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  16. An inorganic compound (A) shows the following reactions. It is white s...

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  17. An inorganic compound (A) shows the following reactions. It is white s...

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  18. {:(,"Column - I",,"Column - II"),((A),"Corundum",(P),Ca(a)B(6)O(11).5H...

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  19. How many of the following show borax bead test B, Be, Mg, Cu, Fe, Cr, ...

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  20. Al[BH(4)](3) contains how many 3 centered -2e^(-) bonds.

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