Notes in Group 13

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Published	04/27/2024	Gallium, indium, thallium and nihonium are {{c1::almost exclusively metallic}} in character.
Published	04/27/2024	The abundance of boron in earth crust is less than {{c1::0.0001}}% by mass.
Published	04/27/2024	Boron is a fairly rare element, mainly occurs as {{c1::orthoboric acid, (H3BO3)}}, {{c1::borax, Na2B4O7·10H2O}}, and {{c1::kernite, Na2B4O7·4H2O}}.
Published	04/27/2024	Most abundant metal in the earth's crust
Published	04/27/2024	Aluminium is the {{c1::third most}} abundant element in the earth's crust.
Published	04/27/2024	Cryolite formula
Published	04/27/2024	Half life of nihonium's most stable isotope
Published	04/27/2024	Atomic radius order of group 13
Published	04/27/2024	Ionisation enthalpy order of group 13
Published	04/27/2024	Order of EN of group 13
Published	04/27/2024	Boron is {{c1::non-metallic}} (metallicness) in nature. It is {{c2::extremely hard and black coloured}} solid.
Published	04/27/2024	Members of group 13 except for Boron are {{c1::soft metals}} with {{c2::low}} melting point and {{c3::high}} electrical conductivity.
Published	04/27/2024	Group 13 element that can exist as liquid during summer.
Published	04/27/2024	Density order of group 13
Published	04/27/2024	Why does boron not form +3 ions?
Published	04/27/2024	Relative stability order of +1 oxidation state of Al, Ga, In, Tl
Published	04/27/2024	{{c1::+3}} oxidation state of thallium is highly {{c1::oxidising}} in character
Published	04/27/2024	Tendency of group 13 molecules to behave as lewis acid {{c1::decreases}} with increase in size.
Published	04/27/2024
Published	04/27/2024	ECl3 + H2O -->also the exception to this[E is group 13 element]
Published	04/27/2024	Compare L1 and L2
Published	04/27/2024	Ionic size order of group 13 (of M3+)
Published	04/27/2024	Why is melting point of boron very high?
Published	04/27/2024	Order of melting point of group 13 elements
Published	04/27/2024	Boiling point order of group 13
Published	04/27/2024	Why is boron never found in free state on earth?
Published	04/27/2024	M2O3 (Acidic/amphoteric/basic?) [M is group 13 element]
Published	04/27/2024	Crystalline boron structure
Published	04/27/2024	Reaction of Van Arkel Method
Published	04/27/2024	Why is boron iodide used for Van Arkel method?
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Published	04/27/2024	Why is heating boron oxide with carbon to prepare solid boron not efficient?
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Published	04/27/2024	How is burning boron oxide with magnesium better than with carbon?
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Published	04/27/2024	How is amorphous boron converted to crystalline boron?
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Published	04/27/2024	Formula of Colemanite
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Published	04/27/2024	What is the borax bead test?Which metals can it be used on?
Published	04/27/2024	Structure of metaborate ion in alkali metaborate salts?
Published	04/27/2024	Why is diborane highly reactive?
Published	04/27/2024	How does diborane exist at room temp?
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Published	04/27/2024	Diborane acts as 2 things
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Published	04/27/2024	Compare reducing character of metal hydrides and diborane.
Published	04/27/2024	[large lewis base]
Published	04/27/2024	What happens when you heat borazole?
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Published	04/27/2024	Coordination number of aluminium in solid state
Published	04/27/2024	Why is solid aluminium stable in air?
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Published	04/27/2024	Formula of corundum
Published	04/27/2024	Structure of cryolite
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Published	04/27/2024	These compounds are predominantly
Published	04/27/2024	Why was aluminium extremely expensive in the past?
Published	04/27/2024	Compare lewis acid strength of boron halides and reason
Published	04/27/2024	Why is BF3 more stable than B(OH)3?
Published	04/27/2024	[in aqeous medium]
Published	04/27/2024	[in aqeous medium]
Published	04/27/2024	[in aqeous medium]
Published	04/27/2024	[in aqeous medium]
Published	04/27/2024	Structure of amorphous boron
Published	04/27/2024	Which element in group 13 is best reducing agent?
Published	04/27/2024	Is Tl2O basic or acidic?
Published	04/27/2024	Compare covalent character of BN and AlN
Published	04/27/2024	Reaction of aluminium with water at different temperatures
Published	04/27/2024	When does boron react with acids?
Published	04/27/2024	Reaction of aluminium with oxidising acids
Published	04/27/2024	How do aluminium nitrates and sulphates decompose on heating?
Published	04/27/2024	also reaction with NaOH of different group 13 elements[in aqeous medium]
Published	04/27/2024	also reaction with NaOH of different group 13 elements[forming a fused mixture]
Published	04/27/2024	Reaction of aluminium with MnO2 and Cr2O3
Published	04/27/2024
Published	04/27/2024	Colour of diborane
Published	04/27/2024	Boron reaction with silicon dioxide or carbon dioxide when heated
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Published	04/27/2024	Why is diborane used as rocket fuel?
Published	04/27/2024	reactions at different temperatures and conditions
Published	04/27/2024	What happens when you heat boric acid?
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Published	04/27/2024	What is red and white bauxite?
Published	04/27/2024	How is melting point of aluminium for electrolysis lowered?
Published	04/27/2024	Reaction of electrolysis of bauxite at cathode and anode
Published	04/27/2024	How was aluminium prepared from bauxite in the past?
Published	04/27/2024	What is Serpeck's method for concentrating bauxite?
Published	04/27/2024	Which halides does B2X4 exist for?Also structures?
Published	04/27/2024	What is oxidation state of boron in BX3?
Published	04/27/2024	Hydrolysis of BX3
Published	04/27/2024	Is AlF3 soluble in water?
Published	04/27/2024	Structure of AlF3
Published	04/27/2024	How does AlCl3 exist?
Published	04/27/2024	Hydrolysis of AlCl3
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Published	04/27/2024	Best method for manufacture of boron trifluoride
Published	04/27/2024	Also why is HCl gaseous?
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Published	04/27/2024	What happens when you dehydrate hydrated aluminium trichloride?
Published	04/27/2024	Structure of AlCl3.6H2O
Published	04/27/2024	Compare E-E bonds, where E varies across group 13
Published	04/27/2024	Structure of
Published	04/27/2024	Compare stability and give reason
Published	04/27/2024	Compare stability and give reason
Published	04/27/2024	Compare stability
Published	04/27/2024	Why does coordination number of group 13 elements tend to increase as we go down group?
Published	04/27/2024	Structure of Tl4Cl6
Published	04/27/2024	Compare lp donation of peroxide and oxygen
Published	04/27/2024	Structure of sodium perborate
Published	04/27/2024	If an aqueous solution having concentrated NaX in acidic conditions is added to BX3, in which case B will not change its hybridisation from sp2 to sp3…
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Published	04/27/2024	Structure of TlI3
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Published	04/27/2024	Where does boron occur in india?
Published	04/27/2024	% of 11B
Published	04/27/2024	Colour of cobalt metaborate
Published	04/27/2024	What is orthoboric acid soluble in?
Published	04/27/2024	Boiling point of diborane
Published	04/27/2024	Use of LiBH4 and NaBH4
Published	04/27/2024	What are metal borides used for?
Published	04/27/2024	Use of borax and boric acid
Published	04/27/2024	Why has the use of aluminium and its compounds been reduced?
Published	04/27/2024	What is an acidic buffer?
Published	04/27/2024	Boron halides are {{c1::covalent}} (covalent/ionic) in nature.
Published	04/27/2024	Aluminium halides are {{c1::covalent}} (covalent/ionic) in nature.
Published	04/27/2024	Structure of aluminium hydride
Published	04/27/2024	Boron carbide is used for
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