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The p-Block Elements
Give reasons:
A mixture of dilute NaOH and aluminium pieces is used to open drain.
Aluminium pieces dissolve in dilute NaOH to evolve dihydrogen gas whose presence can be used to open clogged drain.
2Al (s) + 2NaOH(aq) + 6H2O(l)
↓
2 Na+[Al(OH)4] –(aq) + 3H2(g)
Sodium
tetra hydroxo aluminate(III)
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Name the element of group 13 which forms only covalent compounds.
Which element of group 13 forms amphoteric hydroxide?
Which element of group 13 forms the most stable +1 oxidation state?
What is the nature of boron trifluoride?
What is the structure of diborane?
Can borax bead test be performed for Ca2+ ion?
Which is the hardest compound of boron?
What is inorganic benzene? Write its formula.
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