Home
Class 12
CHEMISTRY
Crystalline boron in small amounts may b...

Crystalline boron in small amounts may be obtained by:

A

reducing `BCl_(3)` with `H_(2)`

B

pyrolysis of `Bl_(3)`

C

thermal decomposition of diborane

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
(a)`2BX_(3)+3H_(2)underset(" or Tantalum")overset("red hot W")to2B+6HX` , (`X=Cl` or `Br`)
(b)`2Bi_(3)underset(" or Tantalum")overset("red hot W") to 2B+3l_(2)` , (Van Arkel method)
(c )`B_(2)H_(6)overset(Delta)to2B+3H_(2)`
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise Exercise-1 Part-II : ONLY ONE OPTION CORRECT TYPE Section (C) : Chemical properties of elements (B,C,Si)|7 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise Exercise-1 Part-II : ONLY ONE OPTION CORRECT TYPE Section (D) : Chemical properties of elements (AI,Sn,Pb)|8 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise Exercise-1 Part-II : ONLY ONE OPTION CORRECT TYPE Section (A) : Occurance, physical properties & Allotropy|10 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise PART -II|23 Videos

  • P-BLOCK ELEMENTS (HALOGEN & NOBLE GASES)

    RESONANCE ENGLISH|Exercise APSP PART-3|22 Videos

Similar Questions

Explore conceptually related problems

Boron can be obtained by:

Boron is a

A crystalline solid

Pure Boron & silicon can be obtained by

Components of milk may be obtained by

Crystalline solids have

The coordination number of a central ion may be obtained from

Which of the following xenon-OXO compounds may not be obtained by hydrolysis of xenon fluorides?

A waxy crystalline solid (A) with a garlic odour is obtained by burning white P in a stream of air and nitrogen. What is A