What is the conjugate base in equation no2-+h2o hno2+oh- ?

The hydroxide ion is the conjugate base in this equation.

Explanation:

The acid and base in a conjugate pair differ only by a proton . As the Bronsted-Lowry acid-base theory goes, the substance with that extra proton is considered to be the acid. The other substance in the pair is considered to be the base.

In this reaction, there are two conjugate acid-base pairs:

:

:

By convention, an acid A reacts with a base B to produce

In other words,

.

For this reaction,

On the right-hand side of the equation:

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substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.