What type of change takes place when a sodium hydroxide pellet is added to water? (2024)

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

Physical and Chemical changes

What type of ...

Question

Physical change

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

Reversible chemical change

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

Chemical change

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

The correct option is C
Chemical change
Sodium hydroxide pellet dissolves in water to form aqueous solution of sodium hydroxide along with release of heat. This is an exothermic reaction.

Suggest Corrections

Similar questions

Q. Give one example for each of the following types of changes:
(a) physical changes.
(b) chemical changes
(c) reversible changes
(d) irreversible changes

Question 7

Neutralisation reaction is a
(a) physical and reversible change.
(b) physical change that cannot be reversed.
(c) chemical and reversible change.
(d) chemical change that cannot be reversed.

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 :

Four students have their own opinion about reversible and irreversible changes. Who among the following is correct?

Rohan: Both physical and chemical changes are reversible.

Sam: Both physical and chemical changes are irreversible.

Tom: Physical changes are irreversible and chemical changes are reversible.

Riah: Chemical changes are irreversible and physical changes are reversible

Join BYJU'S Learning Program

What type of change takes place when a sodium hydroxide pellet is added to water? (2024)

The correct option is CChemical changeSodium hydroxide pellet dissolves in water to form aqueous solution of sodium hydroxide along with release of heat. This is an exothermic reaction.

References

The correct option is C
Chemical change
Sodium hydroxide pellet dissolves in water to form aqueous solution of sodium hydroxide along with release of heat. This is an exothermic reaction.