- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Salt can be separated from its solution (salt dissolved in water), because
(a) mixing of salt in water is a change that can be reversed by heating and melting of salt
(b) mixing of salt in water is a change that cannot be reversed
(c) mixing of salt in water is a permanent ‘ change
(d) mixing of salt in water is a change that can be reversed by evaporation.
Correct Answer: (d) mixing of salt in water is a change that can be reversed by evaporation.
Explanation: Salt can be separated from its water solution by evaporating the water. Hence mixing of salt in water is a reversible change.
- Related Articles
- Is the mixing of sugar or salt in water is a reversible or irreversible change?
- Give one example in each case:(a) Change which occurs on heating but can be reversed.(b) Change which occurs on heating but cannot be reversed.(c) Change which occurs on cooling but can be reversed.(d) Change which occurs on mixing two substances, but can be reversed.(e) Change which occurs on mixing two substances, but cannot be reversed.
- State whether the following statements are true or false :(a) Alcohol can be separated from a mixture of alcohol and water by a separating funnel.(b) Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
- How can you obtain pure water from a salt-water mixture (or salt-solution)? Draw a neat and labelled diagram of the apparatus you would use to obtain pure water from a salt-water mixture (or salt-solution).
- A salt is dissolved in water. The pH of this salt solution was found to be 7 by measuring the pH with a universal indicator paper. The salt is most likely to be(a) Na2CO3(b) KCl(c) NH4Cl(d) CH3COONa
- Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates aphysical change that can be reversedchemical change that can be reversedphysical change that cannot be reversedchemical change that cannot be reversed.
- Neutralization 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
- Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.
- Describe an activity to show that solution of salt in water can conduct electricity.
- How much water should be added to 15 grams of salt to obtain 15 percent salt solution?
- Rolling of chapati and baking of chapati are the changes that(a) can be reversed(b) cannot be reversed(c) can be reversed and cannot be reversed, respectively(d) cannot be reversed and can be reversed, respectively
- One litre of water is evaporated from $6$ litres of a solution containing $5$ % salt. Find the percentage of salt in the remaining solution.
- Which of the following is not a physical change?(a) Boiling of water to give water vapour(b) Melting of ice to give water(c) Dissolution of salt in water(d) Combustion of Liquefied Petroleum Gas (LPG)
- Explain why, a solution of salt in water is considered a mixture and not a compound.
- How can a hydrated salt be converted into anhydrous salt? Give an example.
Advertisements