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BITSAT2017Chemistrys Block ElementsActual

Choose the incorrect statement.

Options

  1. ASodium borohydride reacts very slowly with cold water
  2. BSodium borohydride reacts violently with cold water to give H 2 ( g )
  3. CSolubility of sodium borohydride in water at 25 0 C is 10 . 05   g / ml
  4. DMelting point of sodium borohydride is 500 0 C

Correct answer

B. Sodium borohydride reacts violently with cold water to give H 2 ( g )

Step-by-step solution

Option (b) is the incorrect statement as reaction of NaBH 4 with cold water is very slow. It is not violent. All other are correct statements. The reaction of sodium borohydride (NaBH 4​ ) with cold water is very slow.

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