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Mixture

In a mixture,...

Question

In a mixture, the chemical properties of the components do not change but exhibit new physical properties. State true or false

A

True

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B

False.

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Solution

The correct option is A True
A mixture is a substance made by combining two or more different components in such a way that no chemical reaction occurs. In a mixture, the chemical properties of the components do not change but exhibit new physical properties. For e.g.:- mixing water and alcohol produces a mixture that has a higher boiling point and lower melting point than alcohol, but their chemical composition remains same.

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Chemical properties of the substances do not change with the change of its physical state but rate of chemical reaction do depend upon the physical state.what does this mean.

Physical change alters chemical properties and chemical change alters physical properties.

Say True or False.

Q. Matter undergoes a change. The changes are of two types: Physical and chemical change.

A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same. Usually increasing the temperature or applying pressure or both bring about a physical change. On reversing the condition, that is reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible.

A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, new chemical and physical properties of the substance are formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance.

In a chemical change, the properties that change are :

Q. Matter undergoes a change. The changes are of two types : Physical and chemical change. A physical change is a change that involves only a change in the physical state of matter.
Its chemical properties remain the same. Usually increasing the temperature of applying pressure or both brings about a physical change. On reversing the condition, i.e., reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible. A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, the chemical and physical properties of the substance is formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance. When zinc carbonate is heated and cooled, the change(s) that are observed are :

Which of these physical properties do not change when two different substances are used to form a mixture?

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