NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- s Block Elements
NTA Abhyas 2020 · Chemistry · s Block Elements
Which one of the following cannot be prepared from B _ 2 H _ 6 ?
Which one of the following cannot be prepared from
Options
- A{\text{NaBH}_{4}
- B{B}_{2} {{\text{(CH}_{3} \text{)}_{4} {H}_{2}
- C{B}_{2} {{\text{(CH}_{3} \text{)}_{6}
- D{H}_{3} {\text{BO}_{3}
Correct answer
C. {B}_{2} {{\text{(CH}_{3} \text{)}_{6}
Step-by-step solution
In diborane, {\text{(B}_{2} {H}_{6} \text{)} molecule, only four terminal hydrogen atoms are replaceable. The two bridge -atoms cannot be substituted. Hence {B}_{2} {{\text{(CH}_{3} \text{)}_{6} cannot be prepared from