JEE Main20198 Apr 2019Morning ShiftChemistryp Block Elements (Group 13 & 14)Actual
Diborane B 2 H 6 reacts independently with O 2 and H 2 O to produce, respectively:
Options
- AH B O 2 and H 3 B O 3
- BH 3 B O 3 and B 2 O 3
- CB 2 O 3 and [ B H 4 ] -
- DB 2 O 3 and H 3 B O 3
Correct answer
D. B 2 O 3 and H 3 B O 3
Step-by-step solution
Diborane reacts with oxygen exothermically to form boric oxide ( B 2 O 3 ) B 2 H 6 + 3 O 2 → B 2 O 3 + 3 H 2 O Diborane gets readily hydrolysed to give boric acid B 2 H 6 + 3 H 2 O → 2 B O H 3 + 3 H 2 ( g )