How to arrange increasing (C-H) bond length in increasing order and H-C-F bond angle in the given compounds, CH4, CH3F, CH2F2 and CHF3 ?

According to the bent's rule the more electronegative atom not only prefer to stay in that Hybride orbital which having less  % S character (more p-character) but it also decreases % S-character and increases % P-character in its attached orbital from the central atom depending on circumstance.

When B2H6 is allowed to react with following Lewis bases, then how may given Lewis base form adduct through symmetrical Cleavage of B2H6.

NH₃, CH₃NH₂, Pyridine , CO, T.H.F., PH₃, PF₃, (Me)₃N, (Me)₂NH.

SOLUTION:

B₂H₆ undergoes symmetrical cleavage with large size weak Lewis base like PH₃, PF₃, Pyridine , THF , (Me)₃N , CO.

Related questions:

(1) Why Ga has small size than Al exceptionally

(2) Why aqueous solution of borax reacts with two moles of acids ?

(3) What is structure of solid Ortho Boric acid ?

(4)What is the structure of trimetaboric acid and trimetaborate ion?  

(5) Why Borazine is more reactive than benzene towards Electrophic Aromatic substitution reactions ?

(6) Why Borazine (B₃N₃H₆) is also known as inorganic benzene ?.

(7) Why B-F bond length in BF₃ is shorter (130 pm) than B-F bond Iength in BF₄- (143 pm)?. Explain.

(8) Why B-F do not exist as dimer?. Explain.

(9) Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

(10) Why Boric acid become strong acid in the presence of cis 1,2-diol or 1,3-diol ?

(11) Three-center two-electron bond (3C-2e Bond):Structure of AlCl3:

(12) What is the molecular formula of Borax ?

(13) What is the difference between the structure of AlCl₃ and diborane?

Give the examples of covalent species which have different hybridization in gaseous state as well as in liquid phase?

 

What happen when aq AlCl3 react with Acid or Base?

When a soluble aluminium salt is placed in water at room temperature. Initially the aluminium ion is surrounded by six water molecules and the complex ion has the predicted octahedral Geometry.

This complex ion behaves as an acid in water, losing protons, and a series of equilibria are established (H⁺ is used, rather than H₃O⁺for simplicity):

These equilibria give rise to an acidic solution in water, to the Hexahydroxoaluminate(iii) ion [Al(OH)₆]^3- in a strongly alkaline solution, and only in strongly acidic solutions is the hexaaquo ion [Al(H₂O)₆]³⁺ found. 

The solid hydrate, often written AlCl₃. 6H₂O and more correctly [Al(H₂O)₆]Cl₃ can, therefore, only be obtained from a strongly acidic solution. The reaction with water resulting in the liberation of a proton is again known as hydrolysis and occurs whenever the central metal ion is small and highly charged (i.e. having a high surface density of charge), for example in salts of iron(III), chrornium(III).

Related Questions: 

(1) Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

(2) Why Ga has small size than Al exceptionally

(3) Why aqueous solution of borax reacts with two moles of acids ?

(4) What is structure of solid Ortho Boric acid ?

(5) What is the structure of trimetaboric acid and trimetaborate ion?  

(6) Why Borazine is more reactive than benzene towards Electrophic Aromatic substitution reactions ?

(7) Why Borazine (B3N3H6) is also known as inorganic benzene ?.

(8) Why B-F bond length in BF3 is shorter (130 pm) than B-F bond Iength in BF4- (143 pm)?. Explain.

(9) Why B-F do not exist as dimer?. Explain.

(10) Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

(11) Why Boric acid become strong acid in the presence of cis 1,2-diol or 1,3-diol ?

(12) Four-center two-electron bond (4C-2e Bond): Structure of AlCl3:

(13) What is the molecular formula of Borax ?

(14) What is the difference between the structure of AlCl3 and diborane?

What is the structure of Melamine and how can synthesied ?

 Melamine formed by trimerization of  H₂N– CN ( cyanamide ). Which is also known as  cyanuric amide.