MyQuestionIcon

1

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

Need for Balancing

Chemical chan...

Question

Chemical change involves:

A

No change in weight of the reacting substance and the product formed.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Change in the composition.

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

C

Absorption (or) the release of energy.

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

D

Formation of precipitate.

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

Open in App

Solution

The correct options are
B Change in the composition.
C Absorption (or) the release of energy.
D Formation of precipitate.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion: Tearing of paper is a physical change, although it cannot be reversed.
Reason: Chemical change is a reaction involving the change in chemical properties or composition, resulting in the formation of a new substance.

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 :

Q. Q. With reference to physical and chemical change consider the following statements:Which of the above given statements is/are correct?

1 and 2 only
1 and 3 only
3 only
1,2 and 3

Q. Assertion :"A golden yellow precipitate of lead iodide is formed when colourless lead nitrate solution is mixed with colourless solution of potassium iodide." So, it is a chemical change Reason: Formation of new products in the reaction with the precipitate indicates a chemical change

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Balancing of a Chemical Reaction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Need for Balancing

Standard VIII Chemistry

Join BYJU'S Learning Program

CrossIcon