What is the composition of metals in pyrophoric mischmetal?
- A$Ce\, 50\%, La\, 40\%, Fe\, 10\%$
- B$Ce\, 50\%, La\, 40\%, Fe\, 7\%, \text{others } 3\%$
- C$Ce\, 40\%, La\, 50\%, Fe\, 5\%, \text{others } 5\%$
- D$Ce\, 40\%, La\, 50\%, Fe\, 10\%$
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Similar Questions
In lanthanides,with an increase in atomic number,the atomic radius decreases,except for the element $\underline{X}$. What is $\underline{X}$?
Identify the element with the smallest ionic radius in the $+3$ oxidation state from the following:
The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium $= 99$)
Which of the following properties of lanthanoids is $NOT$ true?
The most common oxidation state of Lanthanoid elements is $+3$. Which of the following is likely to deviate easily from $+3$ oxidation state?
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