Borax is converted into crystalline boron by the following steps
${B{orax}}\xrightarrow{X}{H_3}B{O_3}\xrightarrow{\Delta }{B_2}{O_3}\xrightarrow[\Delta ]{Y}B$,
$X$ and $Y$ are respectively
Borax is converted into crystalline boron by the following steps
${B{orax}}\xrightarrow{X}{H_3}B{O_3}\xrightarrow{\Delta }{B_2}{O_3}\xrightarrow[\Delta ]{Y}B$,
$X$ and $Y$ are respectively
- A
$HCl, Mg$
- B
$HCl, C$
- C
$C, Al$
- D
$HCl, Al$
Similar Questions
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Boron forms $BX_3$ type of halides. The correct increasing order of Lewis-acid strength of these halides is
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A nonmetallic element of group $-13$, used in making bullet proof vests is extremely hard solid of black colour. It can exist in many allotropic forms and has unusually high melting point. Its trifluoride acts as Lewis acid towards ammonia. The element exhibits maximum covalence of four. Identify the element and write the reaction of its trifluoride with ammonia. Explain why does the trifluoride acts as a Lewis acid.
A nonmetallic element of group $-13$, used in making bullet proof vests is extremely hard solid of black colour. It can exist in many allotropic forms and has unusually high melting point. Its trifluoride acts as Lewis acid towards ammonia. The element exhibits maximum covalence of four. Identify the element and write the reaction of its trifluoride with ammonia. Explain why does the trifluoride acts as a Lewis acid.
Identify the compounds $A, X$ and $Z$ in the following reactions :
$A + 2HCl + 5{H_2}O \to 2NaCl + X$
$X\xrightarrow[{370\,K}]{\Delta }HB{O_2}\xrightarrow[{ > 370\,K}]{\Delta }Z$
Identify the compounds $A, X$ and $Z$ in the following reactions :
$A + 2HCl + 5{H_2}O \to 2NaCl + X$
$X\xrightarrow[{370\,K}]{\Delta }HB{O_2}\xrightarrow[{ > 370\,K}]{\Delta }Z$
Give uses of boron and its compound.
Give uses of boron and its compound.