what is efflorescence ? give an …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

what is efflorescence ? give an example.

Posted by Kanak Shakya 8 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Amar Kumar 8 years, 1 month ago

Efflorescence is the loss of water (or a solvent) of crystallization from a hydrated or solvated salt to the atmosphere on exposure to air.

Efflorescence means "to flower out" in French is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process comprises the dissolving of an internally held salt in water, or occasionally in another solvent. The water, with the salt now held in solution, migrates to the surface, then evaporates, leaving a coating of the salt.

Example is Gypsum (CaSO₄.2H₂O) is a hydrate solid that, in a sufficiently dry environment, will give up its water to the gas phase and forms anhydrite (CaSO₄).

2Thank You

ANSWER

Test

Related Questions

What is the function of petal and sepal.

Posted by Surya Kumar 1 year, 4 months ago

CBSE > Class 10 > Science

1 answers

Digestion is begin from in the presence in which enzymes or digestion occur

Posted by Ansh Preet 10 months, 1 week ago

CBSE > Class 10 > Science

1 answers

How do organisms obtain their nutrition?

Posted by Rani Alan 1 year, 4 months ago

CBSE > Class 10 > Science

1 answers

Obtain the relation between incidence angle, emergence angle, prism angle and deviation angle for refraction through prism How to derive this

Posted by Ankita Yenteth 1 year, 4 months ago

CBSE > Class 10 > Science

0 answers

What effect does the concentration of H+(aq) ions have on the nature of the solution

Posted by Tushar Sharma 1 year, 4 months ago

CBSE > Class 10 > Science

2 answers

What is the importance of variation explain in 4 to 5 points

Posted by Harshal Patil 10 months, 1 week ago

CBSE > Class 10 > Science

0 answers

Explain three stages of resource planning

Posted by Harshita Tondey 1 year, 4 months ago

CBSE > Class 10 > Science

3 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Pandey Ji 5 months, 3 weeks ago

CBSE > Class 10 > Science