Consider this reaction: nh4+ + hpo42− → nh3 + h2po4−
which is the bronsted-lowry acid ?
nh4+
hpo42-
hpo42–
h2po4–

Option (a) is the correct answer.

Explanation:

According to Bronsted-Lowry, species which are able to donate or give hydrogen ions are known as acids. Whereas species which accept hydrogen ions are known as bases.

For example,

Here is donating hydrogen ions hence it is the Bronsted-Lowry acid.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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