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a
Na2B4O5OH4 . 8 H2O – Borax
b
Ga > Al – atomic size
c
Borax bead – B2O3+NaBO2
d
Ga – wide liquid range
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Correct option is B
Due to poor screening effect of d electrons nuclear charge is more and atomic size is less in Gallium.Talk to our academic expert!
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Borax is used as a cleansing agent because on dissolving in water, it gives:
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