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Setting of curd is a chemical change b'coz when lactobacillus bacteria comes in contact of milk they convert the milk to curd due to some biochemical reasons.
Wiki User
∙ 13y ago
Anonymous
Wiki User
∙ 13y agoOfcourse!!
As you would know milk is made out of curd(ma mom would know how..but to my knowledge u put a little amount of yesterday's curd into a casserole an add hot milk to it...let it set through the night ,and Voila! u get curd in the in the morning or it may even tk longer depends on the temp.)*i'm n tht sure abt d process i might hv missed something out ..ma mom would know... *
Nw bk to the answer:
No. 1)There is a complete change in orientation((milk is liquid curd is semi))...
No. 2)There is change in odor...
No. 3)-The bacteria releases lactic acid...
No. 4)-There is a drop in pH value due to formation of acid...
All these things together prove that setting of curd Is a chemical change
Setting of curd is a chemical change because we cannot get the milk we used to make the curd and a new substance is formed.
Wiki User
∙ 13y agoOfcourse!!
As you would know milk is made out of curd(ma mom would know how..but to my knowledge u put a little amount of yesterday's curd into a casserole an add hot milk to it...let it set through the night ,and Voila! u get curd in the in the morning or it may even tk longer depends on the temp.)*i'm n tht sure abt d process i might hv missed something out ..ma mom would know... *
Nw bk to the answer:
No. 1)There is a complete change in orientation((milk is liquid curd is semi))...
No. 2)There is change in odor...
No. 3)-The bacteria releases lactic acid...
No. 4)-There is a drop in pH value due to formation of acid...
No. 5)It is irreversible((yo cannot get milk back frm curd))
All these things together prove that setting of curd Is a chemical change
Wiki User
∙ 13y agothe right answer is that it is a physical change as it is made from milk and is a milk product.
Wiki User
∙ 11y agoyou would know that a curd is a chemical change because you cannot get the milk back thats why and chemical changes are irreverseble .
Wiki User
∙ 12y agoYes, it's a complex reaction with the enzyme rennet, that also yields whey.
Wiki User
∙ 11y agoPhysical and chemical change
Anonymous
Wiki User
∙ 11y agobecause it cant be undone!!
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which of the following requires a chemical change?
Rusting of iron in presence of moisture and oxygen. Burning of wood. Milk becoming curd. Formation of caramel from sugar by heating. Baking of cookies and cakes. Cooking any food. Acid-base reaction. Digestion of food.
What is the difference between physical and chemical change give examples?
CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.
Curd is more acidic than milk is this true?
curd is more acidic than milk .Because when milk is changed to curd it's pH value decreases due to the formation of lactic acid.
What happens when you make curd from milk?
its a chemical bacteria called lactobacillus
Is Change of milk into curd exothermic or endothermic?
It is an endothermic reaction. It absorbs heat while freezing.
Why milk turning into curd is a chemical change?
because it is irreversible and it has a new substance
What change is the conversion of milk to curd?
This is a chemical change.
Is Curdling of milk a chemical change?
when milk curs it is a chemical change. A physical change is change in form, which is revesrable. Like water being frozen then thawed. A chemical change is irreversible, and involves a change in the chemical make up. What is happening is a new compound is being formed by the milk reacting with the air and such.
Is setting of curd into milk a chemical change?
yes!
What is physical state of curd?
Curd is a solid.
What is the physical state of curd?
Curd is a solid.
Formation of curd from milk is which reaction?
Formation of curd in milk is called 'Fermentation'.Curd is formed when milk is pasteurised and fermented by a combination of lactic acid bacteria and a protease.
How lactobacillus make milk to curd?
it can make milk in to curd because it has a special chemical called lacto that changaes milk into curd
Explain why curd forms when milk sours?
The curd is the fat in the milk that sticks together. ------------------------------------------------------------------- I think it is the proteins rather than the fat that are responsible for the formation of curd - after all you can get fat free curd cheese.
which of the following requires a chemical change?
Rusting of iron in presence of moisture and oxygen. Burning of wood. Milk becoming curd. Formation of caramel from sugar by heating. Baking of cookies and cakes. Cooking any food. Acid-base reaction. Digestion of food.
What is the difference between physical and chemical change give examples?
CHEMICAL CHANGE: Such change is a permanent change and substances go through such changes not only alter their outer shape but also change their composition. For example: conversion of milk into yoghurt is a chemical change PHYSICAL CHANGE: Such change is a temporary change and substances go through such changes alter their shape and volume only but composition remains same. For example: water changes into ice and ice melt to water is a physical change.
Curd is more acidic than milk is this true?
curd is more acidic than milk .Because when milk is changed to curd it's pH value decreases due to the formation of lactic acid.
