MCQ
$……….$ forms a green colour in the water.
  • A
    $\mathrm{CuSO}_4$
  • $\mathrm{FeSO}_4$
  • C
    $\mathrm{NaCl}$
  • D
    all the above

Answer

Correct option: B.
$\mathrm{FeSO}_4$
$\mathrm{FeSO}_4$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free