Answer:
Hi myself Shrushtee.
Explanation:
Wire Materials: The most common material for electrical wire is copper and aluminum, these are not the best conductors however they are abundant and low cost. Gold is also used in applications because it is corrosion resistant.
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Answer:
The correct answer is option D.
Explanation:
All the cations given belong to the group-1 cation and will give precipitate of their respective chlorides when HCl is added to their aqueous solution.




All the precipitates are insoluble in cold water but out of all these only lead(II) chloride is soluble in warm water.
KBr i guess, because the + and - charge is 1 so its like that