A solid crystal of NH3 is Question 24 options: soft, low melting, a poor electrical conductor. soft, low melting, a good electrical conductor. hard, high melting, a good electrical conductor. hard, high melting, a poor electrical conductor. soft, high melting, a poor electrical conductor.

In a solid crystal of NH3; there exist a covalent bonding in between the Nitrogen and the hydrogen atoms. Thus the NH3 solid crystal is soft due as a result of covalent bonding. Covalent bonds are formed between two or more atoms having zero or very small electronegativity difference.

However in a covalent bond, a low temperature of heat is sufficient in melting solid crystals of NH3.

SImilarly,in NH3 , the crystal structures , the crystal lattice of NH3 are fixed . Hence , the remain a poor conductor of electricity as they partially dissociate into ions in water.

Thus; A solid crystal of NH3 is soft,have a low melting and a poor electrical conductor.

pstnonsonjoku pstnonsonjoku · Answer 2 · 2021-12-14T13:49:40+01:00

The properties that describe solid ammonia is that it is soft, low melting, a poor electrical conductor.

Ammonia is a molecular substance. Molecular solids do not conduct electricity just like ionic solids. This is because of the absence of free electrons which serve as the charge carriers in solid conductors.

Also, molecular compounds are poor thermal conductors. In a nutshell, a solid crystal of ammonia is; soft, low melting, a poor electrical conductor.

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