SELECT * FROM question_mgmt as q WHERE id=2086 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=62 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry The p-Block Elements how are xeo3 and xeof4 prepared

Question:

How are XeO3 and XeOF4 prepared?

Answer:

(i) XeO3 can be prepared in two ways as shown.

6XeF4  + 12H2O   →   4Xe  +  2XeO3  + 2 4HF  + 3O2

XeF6  +  3H2O      →   XeOF +  6HF

 

(ii) XeOF4 can be prepared using XeF6.

XeF6  +  H2O      →   XeOF +  2HF


SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='3' AND subId='9' AND ex_no!=0 AND status=1 and id!=2086 ORDER BY views desc, last_viewed_on desc limit 0,10
SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='3' AND subId='9' AND ex_no!=0 AND status=1 and id!=2086 ORDER BY last_viewed_on desc limit 0,10

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