Lanthanides Halides & Hydrides
Authored by MUHAMMAD UPM
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which general formula is referring to the most stable Lanthanides Halides compound?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
General formula of Lanthanides Halides depends on?
Number of halogens attachment
Charge of Ln & X atom
Size of Ln and X atom
All are correct
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formation of Lanthanides Halides obtained from reaction between Ln metals with X gas. What is the type of reaction for this formation?
Exothermic Reaction
Endothermic Reaction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can we perform the extraction of even though it was known as the less common extraction due to its low stability?
No
Yes
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following is the structure for Lanthanides Halides?
Rock-salt structure
Hexagonal close-packed(HCP) structure
Complex crystal structure
High hydrogen storage capacity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mining, Beneficiation, Leaching, Purification, Halogenation, Precipitation is the steps for extraction of?
Lanthanides Hydrides
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following pictures is the correct structure for Lanthanides Hydrides?
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