MCQ
What is not true about borax ?
  • A
    Molecular formula is $Na_2B_4O_7.10H_2O$
  • B
    Crystalline borax also contains tetra nuclear unit
  • It hydrolyses to give an acidic solution
  • D
    White crystalline solid

Answer

Correct option: C.
It hydrolyses to give an acidic solution
c
$N{a_2}{B_4}{O_7}.10{H_2}O\,\,\overset{HOH}{\rightarrow}\,\mathop {NaOH\,}\limits_{SB}  + \,\mathop {{H_3}B{O_3}}\limits_{WA} $

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