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To measure the pressure exerted by a tra...

To measure the pressure exerted by a trapped gas A, an open ended mercury manometer is used. After sparking the gas A, it dissociates as, A(g) `to` B(g) + 3C(g). If the pressure of A decreases to 0.9 atm, then (assume temperature to be constant, 300K)

A

total pressure increased to 1.3 atm

B

total pressure increased by 0.3 atm

C

difference in mercury level is 228 mm

D

Total pressure increased by 0.3 cm of Hg

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The correct Answer is:
A, B, C
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