P Block 1
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Grp 13 radii
Grp 13 IE
Grp 13 MP
Grp 13 density order
increases from B to Tl
Tendency to behave like an Lewis acid for halides decreases / increases down the grp?
decreases
Color of boron
hard black colored solid
Why is gallium useful for measuring high temperatures?
gallium has an unusually low melting point and hence exists in a liquid state during summer!
Trichlorides on hydrolysis in water form what?
tetra hedral [M (OH)4]-
Which type of boron reacts with stuff
amorphous boron reacts
TlI3 structure(thallium)
its made of Ti3+ and I-3
White fumes appear from the bottle of AlCl3, why!?
anhydrous aluminum chloride is partially hydrolyzed with the atmospheric moisture to liberate HCl gas, Moist HCl appears white in color
Boron structure draw B12(and how many corners and faces)
Extraction of boron(From colemanite)
Borax formula both type
Borax beads forming process
Borax bead color of different metals(Fe,Co,Cu,Ni,Cr)
Orthoboric acid formula and struture
H3BO3
Orthoboric acid in water forms
Orthoboric acid heated
What is added in titration reaction to get end point with H3Bo3 as acid
cis 1,2 diolnis is added
Diborane prep from LiAlH4 and__ and the whole reaction
Diborane color, toxicity
colorles and highly roxic
Diborane number of 3c 2e and 2c 2e bonds plus structure
2 3c 2e bonds4 2c 2e bonds
Diborane with exposure to air reaction and is it spontaneous or not and what abt its explosivity
yes spontaneous and explosive
