MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Observations That Indicate a Change

Which of the ...

Question

Which of the given changes are observed when sugar is heated?

A

Change in colour

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Change in chemical composition

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Change in shape

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

Change in physical state

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct options are
A
Change in colour

B
Change in chemical composition

C
Change in shape

D
Change in physical state

When granulated sugar is heated, it starts to melt (change in physical state from solid into liquid and change in shape). As it melts its colour start to change from white to golden brown and further to dark brown. Moreover, the chemical composition is also changed because on heating sugar combines with the oxygen present in air to form new compounds.

Curiosity to know more:- The process in which sugar acquires a brownish hue on heating is called caramelization.

Suggest Corrections

thumbs-up

0

Similar questions

Write the chemical reaction where the following changes are observed.

(a) Gas is evolved

(b) Colour change is noticed

(c) Precipitate is formed

(d) Physical state is changed

Q. What change in colour is observed when copper sulphate is heated? Is it chemical change or a physical one?

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 :

Composition of matter changes in a ____________ (physical/chemical) change.

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 :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Observations That Indicate a Change

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Observations That Indicate a Change

Standard VI Chemistry

Join BYJU'S Learning Program

CrossIcon