Question

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koi fltu bahana mt marna.xd..xd.



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Answer 1

Explanation:

1. Because when plaster of paris come in the presence of water it forms gypsum giving a hard solid mass which is ultimately useless or wasted after some time.
2. NEUTRALIZATION REACTION

➡️When acid react with base to form salt and water is known as neutralization reaction.

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Answer 2

Answer:

1.Plaster of Paris in contact with moisture (water) changes to solid hard mass, gypsum.

2.A neutralization reaction is when an acid and a base react to form water and salt and involves the combination of hydrogen ions and hydroxyl ions to generate water. ... Example – 1: When Sodium hydroxide is added to hydrochloric acid. Sodium chloride and water are formed.

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