MCQ
Which of these can be used as moth repellant
- ABenzene hexachloride
- BBenzal chloride
- ✓Hexachloroethane
- DTetrachloroethane
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$(I)$ $MnSO_4.4H_2O$ $(II)$ $FeSO_4.7H_2O$
$(III)$ $NiSO_4.6H_2O$ $(IV)$ $CuSO_4.5H_2O$

Which of the following statements are correct about the kinetics of this reaction?