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Multiple Choice Question with Only One Choice Correct
A spacecraft of mass M explodes into two parts when its velocity is V. After the explosion, one part of mass m is left stationary. What is the velocity of the other part?

(a)

(b)

(c)

(d)

Chemistry

Multiple-Choice Question
The order of relative reactivity of the given halides toward S_N2 reaction is

(a)	PhCH₂Cl > PhCHCl(CH₃) > PhCCl(CH₃)₂	(b)	PhCH₂Cl < PhCHCl(CH₃) < PhCCl(CH₃)₂
(c)	PhCHCl(CH₃) > PhCH₂Cl > PhCCl(CH₃)₂	(d)	PhCHCl(CH₃) > PhCCl(CH₃)₂ > PhCH₂Cl