Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Chemistry
Which one of the following statements is incorrect?
Question Error Report
Question is incomplete/wrong
Question not belongs to this Chapter
Answer is wrong
Solution is wrong
Answer & Solution is not matching
Spelling mistake
Image missing
Website not working properly
Other (not listed above)
Error description
Thank you for reporting, we will resolve it shortly
Back to Question
Thank you for reporting, we will resolve it shortly
Q. Which one of the following statements is incorrect?
JEE Main
JEE Main 2023
General Principles and Processes of Isolation of Elements
A
van Arkel method is used to purify tungsten.
B
The malleable iron is prepared from cast iron by oxidising impurities in a reverberatory furnace.
C
Cast iron is obtained by melting pig iron with scrap iron and coke using hot air blast.
D
Boron and Indium can be purified by zone refining method.
Solution:
Van - Arkel process is used for purification of $Ti, Zr, Hf $ and $B$ .