Chemistry - Complete s-block Question with Solution | TestHub
ChemistryComplete s-blocks-block IIAMedium2 minQB
ChemistryMediumsingle choice
Metals offen been used to remove air from vacuum tube :-
Options:
Answer:
B
Solution:
Calcium and Barium are used to remove traces of air from vacuum tubes.
These metals readily react with gases like oxygen and nitrogen present inside the tube.
Because of this property, they act as getters in vacuum technology.
Their high reactivity helps maintain very low pressure inside vacuum tubes.
Hence, the correct answer is:
(B) Ca, Ba
Stream:JEESubject:ChemistryTopic:Complete s-blockSubtopic:s-block IIA
⏱ 2mℹ️ Source: QB
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