Question

name the compound having hydrogen, aluminium and Lithium as its constituent element​

Answer 1

Answer:

The compound having hydrogen, aluminium and lithium is Lithium Aluminium Hydride $L i A l H_{4}$

Explanation:

$L i A l H_{4}$ is a nucleophillic reducing agent and an inorganic compound which is also called LAH. Moreover,it is used to reduce Polar bonds like C=O.  

$L i A l H_{4}$ is prepared by the reaction between lithium hydride and aluminium chloride.

It’s preparation method is given Below.

$4 \mathrm{LiH}+\mathrm{AlCl}_{3} \rightarrow \mathrm{LiAlH}_{4}+3 \mathrm{LiCl}$

$N a+A l+2 H_{2} \rightarrow N a A l H_{4}$

(high pressure and temperature)  

$N a A l H_{4}+L i C l \rightarrow L i A l H_{4}+N a C l$

(salt metathesis reaction)

Its density is $917 \mathrm{kg} / \mathrm{m3}$

It looks like Grey powder or White Crystals.

Answer 2

Lithium aluminium hydride, commonly abbreviated to LAH, is an inorganic compound with the chemical formula LiAlH4

Explanation:

Related hydride: aluminium hydride;

sodium borohydride; sodium hydride;

Sodium a...Heat capacity (C): 86.4 J/mol K

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