reddish brown Metal X does not react with dilute sulphuric acid but fragment concentrated sulphuric acid on heating liberates a pigment smelling gas why and the solution becomes blue in colour Z identify X Y and Z and branded pens company creation in valves
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Explanation:
Velocity is defined as the Rate of change of displacement
Velocity = d/t
50 /2 = 25
V= u + at
25 = 10 + a× 2
a = 15/2
a = 7.5
=
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