Question

1. Sonu's mother served a glass of hot milk before going to school As Sonu wes in a hurry he
forgot to drink the same Unfortunately, his mother has also gone out. When they came beds
home. Sonu nediced the changes arose in the mil, which was no more milk but set into thick
substance known as curd
Gesed on this situation answer the following questions:
1) What is this setting af mik into curd known as? Is this a physical chemical change
, istuis Orange tarmful?
TTD) Which value Sonu exhibit here?​

Answer 1

Explanation:

The milk turned into thick, tangy, lumpy matter called curd. Due to warm climate and proper food source (milk) bacteria grew up in the milk in large amounts and converted milk into curd. The process of changing milk into curd is a chemical change. The curd forms because of the chemical reaction between the lactic acid bacteria and casein. Milk consists of globular proteins called casein.

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