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?

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 product of reaction between diborane (B2H6) and ammmonia (NH3)?

 

Related questions:

Why Ga has small size than Al exceptionally

Why aqueous solution of borax reacts with two moles of acids ?

What is structure of solid Ortho Boric acid ?

What is the structure of trimetaboric acid and trimetaborate ion?  

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

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

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

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

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

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

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

What is the molecular formula of Borax ?

What is the difference between the structure of AlCl3 and diborane?

Titration of Borax: Tincal : Suhaga :

Structure of Borax: Tincal or Suhaga:

Titration of Boric Acid:

DIBORANE-HYDRIDE OF BORONE-(B2H6):

CHEMICAL PROPERTIES OF DIBORANE:

STRUCTURE OF BORON NITRIDE:

STRUCTURE OF BORAZINE OR BORAZOLE:

STRUCTURE OF DIBORANE :

BORIC ACID (H3BO3) :

BORAX BEAD TEST:

What is use of Orthoboric acids?

Orthoboric acid is used in manufacture of ENAMELS and Glazes for pottery and as disinfectant in medicine.

What is basicity of "Boric acid" ?

H₃BO₃ is soluble in water and behaves as weak monobasic acid. It does not donate protons but rather it accepts OH^- .Therefore it acts as a Lewis acid [B(OH)₃] .It is not a proton donor because it accept lone pair or hydroxyl ion from water.

 

 

Related Questions:

Why Ga has small size than Al exceptionally

Why aqueous solution of borax reacts with two moles of acids ?

What is structure of solid Ortho Boric acid ?

What is the structure of trimetaboric acid and trimetaborate ion?  

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

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

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

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

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

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

Why Boric acid exist in solid state ?

Boric acid exist as solid due to [ Boric [B(OH₎₃] ] hydrogen bonded together into two dimensional sheet.

famous salt of boric acid is "Borax" is uses in manufacturing of ENAMELS and glazes for pottery and disinfectant in medicine.

Related Questions:

What are Silicones? explain with examples.

What are "pyro" oxy acids?

What are "Ortho" or "Meta" oxyacids?

What is Meta Boric Acids?

What are the structural difference between oxides ( P4O6 and P4O10) of phosphorous?

What are common structural features of oxides (P4O6 and P4O5) of phosphorous?

What are most common cyclic meta silicates?What is "calgon" ? Give structure and its uses?

What are the Silicones? Give one example one cyclic Silicone?What is the structure of trimetaboric acid and trimetaborate ion?

What is effect of heat on Borax?

When borax is strongly heated on loop of platinum wire, it loses water and form dehydrated disodium tetra borate which is swells into the white mass, which on further heating disodium tetra borate melts to form a transparent glassy solid called borax glass and borax bead.

When a solution of given salt is heated on bead , then volatile part of salt displaced by B₂O₃  and corresponding metaborates salt is formed which gives Characteristic colour on oxidizing and reducing flame and colour of the bead is noted in hot and cold for each type of flame. This is also called "BORAX BEAD TEST"

Related Questions:

Why Ga has small size than Al exceptionally

Why aqueous solution of borax reacts with two moles of acids ?

What is structure of solid Ortho Boric acid ?

What is the structure of trimetaboric acid and trimetaborate ion?  

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

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

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

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

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

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

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

What is the molecular formula of Borax ?

What is the difference between the structure of AlCl3 and diborane?

Imortant reasoning Questions of Boron family (13th group) for IIT mains/advanced and NEET also !

(1) Why Ga has small size than Al exceptionally

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

What is structure of solid Ortho Boric acid ?

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

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

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

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

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

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

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

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

(11) What is the molecular formula of Borax ?

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

(13) Titration of Borax: Tincal : Suhaga :

(14) Structure of Borax: Tincal or Suhaga:

(15) Titration of Boric Acid:

(15) DIBORANE-HYDRIDE OF BORONE-(B2H6):

(16) CHEMICAL PROPERTIES OF DIBORANE:

(17) STRUCTURE OF BORON NITRIDE:

(18) STRUCTURE OF BORAZINE OR BORAZOLE:

(19) STRUCTURE OF DIBORANE :

(20) BORIC ACID (H3BO3) :

(21) BORAX BEAD TEST:

 

Related Questions:

 

(1) What are Silicones? explain with examples.

(2) What are "pyro" oxy acids?

(3) What are "Ortho" or "Meta" oxyacids? 

(4) What is Meta Boric Acids? 

(5) What are the structural difference between oxides ( P4O6 and P4O10) of phosphorous? 

(6) What are common structural features of oxides (P4O6 and P4O5) of phosphorous?

(7) What are most common cyclic meta silicates?What is "calgon" ? Give structure and its uses?

(8) What are the Silicones? Give one example one cyclic Silicone?

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

 

 

 

 

 

Why Ga has small size than Al exceptionally ?

When we move down to Ga from Al we see that 3d shell fills before Ga and due to increase in effective nuclear change size of Ga in smaller than aluminium.

 

Related Questions:

Why Ga has small size than Al exceptionally

Why aqueous solution of borax reacts with two moles of acids ?

What is structure of solid Ortho Boric acid ?

What is the structure of trimetaboric acid and trimetaborate ion?  

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

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

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

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

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

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

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

What is the molecular formula of Borax ?

What is the difference between the structure of AlCl3 and diborane?

Titration of Borax: Tincal : Suhaga :

Structure of Borax: Tincal or Suhaga:

Titration of Boric Acid:

DIBORANE-HYDRIDE OF BORONE-(B2H6):

CHEMICAL PROPERTIES OF DIBORANE:

STRUCTURE OF BORON NITRIDE:

STRUCTURE OF BORAZINE OR BORAZOLE:

STRUCTURE OF DIBORANE :

BORIC ACID (H3BO3) :

BORAX BEAD TEST:

Why aqueous solution of borax reacts with two moles of acids ?

Aqueous solution of borax reacts with two moles of acids this is because of formation of 2mol each of Na[B(OH)4]¯and B(OH)₃of which only Na[B(OH)₄]¯ reacts with acid. The chemical reaction given as below:

 Na₂B₄O₇ + 7H₂O ⟶ 2B(OH)₃ + 2Na[B(OH)₄]

B(OH)₃ or H₃BO₃ is an acid and does not react with acid. Hence Na[B(OH)₄] reacts with acid.

 

Related Questions:

Why Ga has small size than Al exceptionally

Why aqueous solution of borax reacts with two moles of acids ?

What is structure of solid Ortho Boric acid ?

What is the structure of trimetaboric acid and trimetaborate ion?  

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

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

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

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

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

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