Which of the following are reversible re...

Which of the following are reversible reactions ?

` AgNO_(3) (aq) + NaCl (aq) to`
`AgCl (s) + NaNO_(3) (aq)`

`KNO_(3) (aq) + NaCl (aq) to `
` KCl (aq) + NaNO_(3)`

` BaCl_(2) (aq) + Na_(2) SO_(4) to`
`BaSO_(4) (s) + 2 NaCl (aq) `

`AgCl (s) + Water to Ag^(+) (aq) + Cl^(-) (aq)`

Verified by Experts

The correct Answer is:

B, D

In (b), ions are in equilibrium . In (d) , ions are in equilibrium with the undissolved salt .

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In reversible reactions

concentration of reactants decreases with time

concentration of products increases with time

concentration of reactants decreases and then increases with time

concentration of reactants and products are constant at equilibrium

`KCIO_3` heated in a sealed tube

`Na_2CO_3` heated in a closed vessel

`CaCO_(3)` heated in a closed vessel

`CH_4` heated with excessofo, in a closed vessel