Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
46 views
in Chemistry by (101k points)
closed by
Which of the following is also known as the Pearl white?
1. Bismuth Oxychloride
2. Benzyl alcohol
3. Glycerine
4. Stearic acid

1 Answer

0 votes
by (108k points)
selected by
 
Best answer
Correct Answer - Option 1 : Bismuth Oxychloride

The Correct Answer is Bismuth Oxychloride.

  • Bismuth Oxychloride is also known as the Pearl white.
  • The formula of Bismuth oxychloride is BiOCl is an inorganic bismuth compound.
  • The intrusion of the light wave from its plate-like composition gives a nacre-like pearly iridescent light reflectivity.
  • The bismuth oxychloride structure can be found to consist of layers of ions Cl-, Bi3+ and O2-.

  • It is a lustrous white solid that has been used since ancient times, particularly in ancient Egypt. 
  • BiOCl is formed by bismuth chloride react with water,

          BiCl3 + H2O → BiOCl + 2HCl

  • BiOCl converted to Bi24O31Cl10 when heated over 600° C, called the "Arppe compound," which has a complex layer structure.
  • It used in cosmetics for Glimmer and Shiners.

Related questions

0 votes
1 answer
0 votes
1 answer
asked Dec 31, 2019 in Chemistry by Hitheshkumar (90.9k points)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...