Questions
Which of the following will give orthoboric acid?
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a
Na2B4O7 + HCl(conc.)
b
Na2B4O7 + H2SO4(conc.)
c
BCl3 + H2O
d
All of these
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Correct option is D
Na2 B4O7+2HCl+5H2O⟶2NaCl+4 B(OH)2Na2B4O7 + H2SO4 +5H2O →Na2SO4 +4H3BO3BCl3 + 3H2O →H3BO3 +3HCl.Similar Questions
Which of the following oxides is acidic in nature ?
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