Which of the correct sequence of increasing order of pi bonds in the structure of the following {(I) H2S2O6 (II) H2SO3 (III) H2S2O5} molecules?

 

Related Questions:

What are the oxy-acids?

What are "pyro" oxy acids?

Oxy acids of Phosphorous:

What are "Ortho" or "Meta" oxyacids?

Why "meta" phosphoric acid always exit in a polymeric form?

What is structure of (HPO3) metaphosphoric acid?

Oxy acids of Chlorine:

What is stucture of (H2S2O3) thiosulphuric acid?

 

What is structure of SO3 (in solid state) at room temperature?

 In solid phase SO₃ exist at room temperature and have two different structures i.e. alpha-SO₃ chain structure and gama- (SO₃)₃ cyclic structure (a trimer) like ice structure.

 

S-S bond is presents in? (IIT)

 (a) S₂O₄^2-  (b) S₂O₆^2-  (c) S₂O₇^2- (d) both (a) & (b) 

SOLUTION:

What is structure of SO3 (in solid state) at room temperature?

What is stucture of (H2S2O3) thiosulphuric acid?

What is stucture of (H2S2O8) Peroxydisulphuric acid or marshall's acid?

What is the structure of "Methylcyclotrisilicone" ?

Important fact: that cyclic trimer of Methyltrisilicone [(CH₃)₆SiO₃] is isoelectronic with of timer of SO₃ (S₃O₉),Si₃O₉^-6,P₃O₉^-3    and contains 120 electrons.

Related Questions:

What are the number of sigma bond, pi-bond and lone pair in the lewis dot structure of SO3 ?

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 structures of SO3 in gas phase as well as solid phase ( at room temperature)?

What are the structure of cyclic trimer of SO3 , Methylcyclotrisilicone, Cyclotrimetaphosphate and cyclotrisilicate ion ?

What are the number of sigma bond, pi-bond and lone pair in the lewis dot structure of SO3 ?

SO3 Molecule contains 3-sigma bonds, 3-pi bonds and 6-pairs of lone pairs which are 2-lone pairs on each oxygen atoms , Sulphur atom has no lone pair.

 

Related Questions:

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 structures of SO3 in gas phase as well as solid phase ( at room temperature)?

What are the structure of cyclic trimer of SO3 , Methylcyclotrisilicone, Cyclotrimetaphosphate and cyclotrisilicate ion ?

Why SF6 behave inert towards hydrolysis?

Hydrolysis of SF₆ is thermodynamically feasible but due to high activation energy kinetically it is inert towards hydrolysis. Therefore SF₆ is used as inert gas /insulator in electric devices, which are used as high voltage.

Related Questions:

(1) What are the hydrolysis products of urea ?

(2) CCl4 can not be hydrolysed but SiCl4 can be. Why?

(3) Why PCl3 hydrolysed while NCl3 can not be hydrolysed?

(4) Why SF6 behave inert towards hydrolysis?

(5) Arrange in increasing order of extent of hydrolysis [ CCI4, MgCI2, AICI3, PCl5, SiCI4].

(6) Although Sulphur contain vacant d-orbital but SF6 does not under go hydrolysis. Why ?

(7) Arrange the silicon halides into decreasing order of Lewis acids Character? SiF4, SiCl4, SiBr4, SiI4

What are the structure of cyclic trimer of SO3 , Methylcyclotrisilicone, Cyclotrimetaphosphate and cyclotrisilicate ion ?

Important fact: that cyclic trimer of Methyltrisilicone [(CH₃)₆SiO₃] is isoelectronic with of timer of SO₃ (S₃O₉),Si₃O₉^-6,P₃O₉^-3 and contains 120 electrons.

Related Questions:

What are the number of sigma bond, pi-bond and lone pair in the lewis dot structure of SO3 ?

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 structures of SO3 in gas phase as well as solid phase ( at room temperature)?

What are the structure of cyclic trimer of SO3 , Methylcyclotrisilicone, Cyclotrimetaphosphate and cyclotrisilicate ion ?

What are structures of SO3 in gas phase as well as solid phase ( at room temperature)?

In gas phase sulphur atom of SO₃ has sp² hybridized and trigonal structure. In which three sigma bond give rise to trigonal planer shape and three delocalized π-bond, out of three π-bond one is pπ-pπ bond and another two are pπ-dπ bond.

In solid phase SO₃ exist at room temperature and have two different structures.

Important fact that cyclic trimer of SO₃ (S₃O₉) is also isoelectronic with P₃O₉^-3 and contains 120 electrons.

Structure of Si₃O₉^-6

Structure of P₃O₉^-3

Related Questions:

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?

Why thionyl chloride behaves as Lewis acid as well as Lewis base?.

Hybridization of sulphur in SOCI₂ is sp3 having three bond pair and one lone pair.

Lewis base character is due to the presence of a lone pair of electrons. In SOCl₂, the central atom sulphur atom has vacant d orbitals. Hence it can accept electron pairs. Therefore it can behave as a Lewis acid.

Related Questions:

(1) What is oil of vitriol ?

(2)Why SF6 is inert where as SF4 is highly reactive towards H20 ?.

(3) Why SF6 is known but SCl6 is not ? Explain.

(4) What are structures of SO3 in gas phase as well as solid phase ( at room temperature)?

(5) Why SF6 behave inert towards hydrolysis?

(6) What are the structure of cyclic trimer of SO3 ,

(7) Methylcyclotrisilicone, Cyclotrimetaphosphate and cyclotrisilicate ion ?

(8) What are the SESQUI OXIDES ? give the examples.

(9) Arrange in increasing order of extent of hydrolysis [ CCI4, MgCI2, AICI3, PCl5, SiCI4].

(10) Although Sulphur contain vacant d-orbital but SF6 does not under go hydrolysis. Why ?

(11) CCl4 can not be hydrolysed but SiCl4 can be. Why?

(12) Silianol (SiH3OH) is more acidic than methanol (CH3OH) why?

(13) What happened when Graphite treated concentrated acids like HNO3/HF or KMnO4 ?.

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

(15) What is the molecular formula of Borax ?

(16) What is oil of vitriol ?

Why SF6 is known but SCl6 is not ? Explain.

Sulphur is a small atom. Hence it can accommodate six small fluorine atoms around it. While size of Chlorine is larger than fluorine, thus S cannot accommodate six large chlorine atoms around it. Moreover, because of low electronegativity of Cl, it cannot easily oxidized sulphur to form S(VI). Hence SCl₆ cannot easily form and stable.

Related Questions:

Question (1): Why aqueous solution of AlCl₃ is acidic in nature?

Question (2): What happen when aq AlCl₃ react with Acid or Base?

Question (3): Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

Question (4): Arrange in increasing order of extent of hydrolysis [ CCI₄, MgCI₂, AICI₃, PCl₅, SiCI₄].

Question (5): Although Sulphur contain vacant d-orbital but SF6 does not undergo hydrolysis. Why?

Question (6): CCl₄ can not be hydrolysed but SiCl4 can be. Why?

Question (7): What are the hydrolysis products of urea?

Question (8): Why SF₆ is inert where as SF₄ is highly reactive towards H₂0?.

Question (9): Why SF₆ behaves inert towards hydrolysis?

Question (10): Why PCl₃ hydrolysed while NCl₃ can not be hydrolysed?

Question (11): Why hydrolysis of NCl3 gives NH4OH and HOCl, while PCl3 on hydrolysis gives H3PO3 and HCl?

Question (12) NCl3 and PCl3 on hydrolysis give different kinds of products. These is because of

Why SF6 is inert where as SF4 is highly reactive towards H20 ?.

The maximum coordination number of sulphur is 6. Hence S cannot accommodate more than 12 electrons around it. SF₆ is covalently saturated compound. Thus six fluorine atoms around sulphur protect sulphur from attack by reagent to such an extent that even thermodynamically favorable reaction like hydrolysis (S-O bond is stronger than S-F bond) does not occur. On the other hand, in SF₄, the coordination number is only four. Hence sulphur can be attacked by H₂O.

Related Questions:

Question (1): Why aqueous solution of AlCl₃ is acidic in nature?

Question (2): What happen when aq AlCl₃ react with Acid or Base?

Question (3): Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

Question (4): Arrange in increasing order of extent of hydrolysis [ CCI₄, MgCI₂, AICI₃, PCl₅, SiCI₄].

Question (5): Although Sulphur contain vacant d-orbital but SF6 does not undergo hydrolysis. Why?

Question (6): CCl₄ can not be hydrolysed but SiCl4 can be. Why?

Question (7): What are the hydrolysis products of urea?

Question (8): Why SF₆ is inert where as SF₄ is highly reactive towards H₂0?.

Question (9): Why SF₆ behaves inert towards hydrolysis?

Question (10): Why PCl₃ hydrolysed while NCl₃ can not be hydrolysed?

Question (11): Why hydrolysis of NCl3 gives NH4OH and HOCl, while PCl3 on hydrolysis gives H3PO3 and HCl?

Question (12) NCl3 and PCl3 on hydrolysis give different kinds of products. These is because of

What is oil of vitriol ?

Concentrated sulphuric acid is a dense and  oily liquid which is also known as oil of vitriol.  Concentrated sulphuric acid has a specific gravity of 1.84 and a boiling point of 611 K. The high boiling point and high viscosity indicate that sulphuric acid has associated structure due to hydrogen bonding as shown below:

The concentrated acid is soluble in water and the dissolution process is highly exothermic. So acid is always diluted by adding acid to the water slowly and not by adding water to acid. This is done because in the later case, lot of heat is produced which causes the acid to spurt out of the container.

Related Questions:

(1) Arrange in increasing order of extent of hydrolysis [ CCI4, MgCI2, AICI3, PCl5, SiCI4].

(2) Although Sulphur contain vacant d-orbital but SF6 does not under go hydrolysis. Why ?

(3) CCl4 can not be hydrolysed but SiCl4 can be. Why?

(4) Silianol (SiH3OH) is more acidic than methanol (CH3OH) why?

(5) What happened when Graphite treated concentrated acids like HNO3/HF or KMnO4 ?.

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

(7) What is the molecular formula of Borax ?

(8) What is oil of vitriol ?