Gujarati
p-Block Elements - I
hard

बोरेक्स की संरचना में बोरॉन परमाणु तथा $B-O-B$ इकाई की संख्या क्रमशः है

A$4$ तथा $5$
B$4$ तथा $3$
C$5$ तथा $4$
D$5$ तथा $3$
(KVPY-2013)

Solution

(a) The structure of borax $H _4 B _4 O _9$ is shown below
$[Image]$
Thus, number of boron atoms are $4$ and $B – O – B$ units are $5.$
Standard 11
Chemistry

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