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.
Answer:
They catch fire very easily.
Explanation:
Answer:
2 molecules
Explanation:
In 80 grams there will be 2 molecules of NaOH, so mass of Sodium would be 23 x 2 = 46g.
Need more of a backstory to this?
Options please i think its John Dalton