Pick the odd one out
Sodium borohydride reacts very slowly with cold water
Sodium borohydride reacts very violently with cold water to produce H2
Solubility of sodium borohydride in water at 25∘C is 10.05 gm L−1
Melting point of sodium borohydride is 500∘C
Reaction of NaBH4 with cold water is very slow. All other statements except (b) are correct.