$A$ Lewis acid '$X$' reacts with $LiAlH_{4}$ in ether medium to give a highly toxic gas. This gas when heated with $NH_{3}$ gives a compound commonly known as inorganic benzene. The gas is
- A$B_{2}O_{3}$
- B$B_{2}H_{6}$
- C$B_{3}N_{3}H_{6}$
- D$BF_{3}$
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Give the chemical reaction for the preparation of a borax bead.
Easy
View SolutionWhich of the following statements is correct for boric acid?
Medium
View SolutionIdentify the correct statements from the following :
$I$. $Ga_2O_3$ is an amphoteric oxide.
$II$. The dimer of aluminium chloride has three $Al-Cl-Al$ bridge bonds.
$III$. Boron is a very hard refractory solid of high melting temperature.
$I$. $Ga_2O_3$ is an amphoteric oxide.
$II$. The dimer of aluminium chloride has three $Al-Cl-Al$ bridge bonds.
$III$. Boron is a very hard refractory solid of high melting temperature.
In the following reaction,assign the correct category for the underlined atom in the product of complete hydrolysis at $R.T.$:
$\underline{I}Cl_3 + H_2O \longrightarrow HIO_2 + HCl$
$\underline{I}Cl_3 + H_2O \longrightarrow HIO_2 + HCl$
Difficult
View SolutionWhich reactions can be used to prepare diborane?
$I.$ $3NaBH_4 + 4BF_3 \xrightarrow{\text{ether}} 2B_2H_6 + 3NaBF_4$
$II.$ $2NaBH_4 + I_2 \to B_2H_6 + 2NaI + H_2$
$III.$ $2BF_3 + 6NaH \xrightarrow{450 \ K} B_2H_6 + 6NaF$
$I.$ $3NaBH_4 + 4BF_3 \xrightarrow{\text{ether}} 2B_2H_6 + 3NaBF_4$
$II.$ $2NaBH_4 + I_2 \to B_2H_6 + 2NaI + H_2$
$III.$ $2BF_3 + 6NaH \xrightarrow{450 \ K} B_2H_6 + 6NaF$
Medium
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