MCQ
Consider the following sequence of reactions :
The substance $'B'$ is
- ABenzene
- ✓Acetophenone
- CBenzaldehyde
- DAcetone
The substance $'B'$ is

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${}_{92}{U^{235}} + {}_0{n^1} \to {}_{56}B{a^{141}} + {}_{36}K{r^{92}} + 3x + Q{\rm{( energy)}}$ where three particles named $x$ are produced and energy $Q$ is released. What is the name of the particle $x$ ?

