Question

GASEOUS STATE
A vessel containing gas at a pressure of 80 cm of
Hg was connected to arm A of open end
manometer. The atmospheric pressure was
recorded as 74 cm of Hg. If the mercury in arm A
stands at 84.5 cm height, the mercury in arm B
will stand at
(A) 70.5 cm
(B) 74 cm
(C) 24.5 cm
(D) 88 cm​

Answer 1

24.5 is the correct answer