Question

What happens when sodium hydroxide pellets are dissolved in water. Also tell type of reaction involved

Answer 1

Answer:

The sodium hydroxide gets disassociated into a concentration of Na and OH ions.  The type of reaction is Disassociation and Exothermic.

Explanation:

The reaction that involves in this case is :

NaOH + H2O = (Na +) + (OH -) + H2O + HEAT

NaOH being an ionic compound, has strong electrovalent bonds between their ions and has a high melting or boiling point . However, when added to water, this bond weakens. As water is a polar compound, there is a slight charge that resides in the water molecule. This charge attracts the cations and the anions of NaOH respectively, thus breaking the bond. (H+ ions of water attract the OH- ions of NaOH and OH- ions of water attract the Na+ ions of NaOH). This type of reaction is known as Disassociation of ionic compounds in water.

As, Heat is also given out, it is also an Exothermic reaction.

Hope this helps. Love from India.