A. sulphur
B. carbon (IV) oxide
C. noble gases
D. liquefied oxygen
E. liquefied nitrogen

Correct Answer:

Option A – sulphur

SEE ALSO  A white precipitate was formed when BaCl2(aq) was added to an aqueous solution of a salt X. The precipitate dissolved in dilute HCl with rapid effervescence. Salt X is likely to contain

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