Question

the melting point of ammonia is higher than phosphine because of which .
a. ionic bond
b. covalent bond
c. intermolecular H-bonding
d. none of the above ​

Answer 1

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Since ammonia features hydrogen bonding (owing to the presence of covalent bonds between hydrogen and nitrogen, which is relatively more electronegative and has a lone pair), it has a higher boiling point than phosphine.

Answer 2

fllw kro sb kese ho be tum log Inna

gnne bchhee chhii ache bno or meko fllw kro