(a) Give IUPAC names for:
(a) ${\mathrm{BrCH}}_2{\mathrm{CHClCHCl}}_2$
(b) ${\left({\mathrm{CH}}_3\right)}_2\mathrm{C}={\mathrm{CHCH}}_2\mathrm{Cl}$

OR
Give reason:
(a)Alkyl halides are insoluble in water.
(b) Grignard reagent should be prepared under anhydrous condition.

(a) 3-Bromo-1,1,2-trichloropropane
(b) 1-chloro-3-methyl-2-butene
OR
(a) They are insoluble in H₂O, because there is little to no H-bonding to H₂O.
(b) Grignard reagents are very reactive. They react with moisture present in the apparatus