AIEEE Exam

X ml of H2 effuse out through a hole in a
container in 5 seconds. The time taken for the
effusion of the same volume of the gas specified
below under identical conditions is –
(A) 10 sec. ; H2 (B) 20 sec.; O2
(C) 25 sec.; CO (D) 55 sec.; CO2

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AIEEE Other Question

If the particles are positively charged, which
particles increased their electric potential energy ?
(A) X and Z
(B) Y and Z
(C) W, X, Y and Z
(D) Since the electric field is constant, none of the
particles increased their electric potential energy How many unit cells are present in a cube-shaped
ideal crystal of NaCl of mass 1.00 g ?
[Atomic mass : Na = 23, Cl = 35.5]