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Why Boron hydroxide is acidic whereas Aluminium hydroxide is amphoteric and Thallium hydroxide is basic?
Wiki User
∙ 12y ago
Boron is the only element in group III of the Periodic Table which is non-metallic. Metal hydroxides must form a stable cation and anion i.e. OH-. Boron does not form a stable cation. This is the reason why metals form basic hydroxides while boron forms a weak acid called boric acid.
Wiki User
∙ 12y ago
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Why iron structures need protection from corrosion while aluminium structure do not?
Because aluminium oxide is strong and forms a coating over the aluminium, whereas iron oxide (rust) flakes away.
Why is it safer to use powdered limestone instead of calcium hydroxide to neutralise acidic soil?
Because limestone is not dangerous when in contact with plants/animals etc. whereas I think calcium hydroxide is an irritant
What is the difference between Carbonates and Hydroxides?
A carbonate ion is CO3 with a anion of 2- whereas a hydroxide ion is OH with an anion of - Hope this helps.
Which atom has a lower ionization energy aluminium or boron?
The maximum capacity of electron accommodation in aluminium is 18 electrons( M shell) on contraty it has only 3 valence electrons whereas boron has maximum capacity of 8 electrons(L shell) and it has 3 valence electrons so electron population of Aluminium is less than that of boron.
How do you separate copper from copper oxide?
I think you mean how do you extract copper from copper oxide, if so here's your answer. Take your copper oxide and heat it with something that is more reactive than copper. Carbon is a good example. The more reactive carbon will oxidise, taking the oxygen from the copper oxide leaving copper. copper oxide + carbon --> copper + carbon dioxide 2Cu0 + C --> 2Cu + CO2
Why iron structures need protection from corrosion while aluminium structure do not?
Because aluminium oxide is strong and forms a coating over the aluminium, whereas iron oxide (rust) flakes away.
Why is it safer to use powdered limestone instead of calcium hydroxide to neutralise acidic soil?
Because limestone is not dangerous when in contact with plants/animals etc. whereas I think calcium hydroxide is an irritant
What is the difference between magnesium oxide and magnesium?
The difference is magnesium oxide contains oxide ions ,whereas aluminium oxide doesn't.
What is the difference between sodium and aluminum'?
Sodium is a highly reactive alkali metal whereas aluminium is a less reactive metal in the boron group.
How do you separate iron from aluminuim?
You can do this using a magnet. Iron is ferrous, therefore attracted to magnets, whereas aluminium is non-ferrous and is not attracted to magnets.
Why does Aluminium occur in a form of a compound whereas gold is found in free state?
This is because metals like gold lie at the bottom in the activity series so they are less reactive and are found in the free state, whereas, metals like aluminium, zinc, etc. are found on the top of the activity series so they are highly reactive and are found in the form of compounds.
What is the difference between Carbonates and Hydroxides?
A carbonate ion is CO3 with a anion of 2- whereas a hydroxide ion is OH with an anion of - Hope this helps.
Which atom has a lower ionization energy aluminium or boron?
The maximum capacity of electron accommodation in aluminium is 18 electrons( M shell) on contraty it has only 3 valence electrons whereas boron has maximum capacity of 8 electrons(L shell) and it has 3 valence electrons so electron population of Aluminium is less than that of boron.
How do you separate copper from copper oxide?
I think you mean how do you extract copper from copper oxide, if so here's your answer. Take your copper oxide and heat it with something that is more reactive than copper. Carbon is a good example. The more reactive carbon will oxidise, taking the oxygen from the copper oxide leaving copper. copper oxide + carbon --> copper + carbon dioxide 2Cu0 + C --> 2Cu + CO2
What is the difference between hydroxide ions and hydronium ions?
Their are hydroxyl ions not hydroxide ions. They are OH- . hydronium ions are H3O+ . Presence of hydroxyl ionsin a compound shows its basic nature whereas presence of hydronium ions in a compound shows its acidic nature .
What is the difference between free base and salt forms of drugs as amphetamine?
The "freebase" form is purified using sodium hydroxide whereas the "salt" form is soluble.
Ion released by many bases?
According to acid/base theory, acids release H+ ions in solution whereas bases release OH- (hydroxide) ions
