van-Arkel method of purification of metals involves converting the metals to a
(a) volatile stable compound
(b) non-volatile stable compound
(c) volatile unstable compound
(d) None of the above
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
van-Arkel method of purification of metals involves converting the metals to a
(a) volatile stable compound
(b) non-volatile stable compound
(c) volatile unstable compound
(d) None of the above
van-Arkel method of purification of metals involves converting the metals to a
(a) volatile stable compound
(b) non-volatile stable compound
(c) volatile unstable compound
(d) None of the above
Answer is : (a) volatile stable compound
Ultra pure metals, are prepared by the van-Arkel method. Arkel method is used to purify oxide of titanium metal. Ti is heated with iodine to about 500 K to form volatile compound. The \(Til_4\) is reheated at 1700 K, when it decomposes to give pure Ti.
\(Ti+2l_2\overset{500 k}{\rightarrow} \underset{\text{Volatile stable compound}}{Til_4}\) \(\overset{1700 k}{\rightarrow} \underset{\text{Pure metal}}{Ti}+2l_2\)