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Velocity-time graph for a particle, whic...

Velocity-time graph for a particle, which is moving in straight line is given below. Displacement of particle between t=2 sec to t=5 sec is :-

A

Number of atoms present in 80 amu Ca are `2 N_A`

B

Volume occupied by 2g-atom oxygen at 1 atm pressure and 273 K temperature is 44.8 L

C

9.8 g of `H_2SO_4` has 3.2 g of S-atom

D

`H_2`(g) is an elemental form as well as a molecule of hydrogen.

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