The D and F element Set 3

Tin ✘ Zinc ✘ Mercury ✘ Calcium ✔ NULL ✔ NULL NULL

German silver ✘ Beryllium bronze ✘ Constantan ✘ Fool's gold ✔ NULL ✔ NULL NULL

Cu, Ni, Fe, Mn ✘ Cu, Sn, Zn ✘ Cu, Sn, P ✘ Cu, Zn ✔ NULL ✔ NULL NULL

Gold ✘ Silver ✘ Nickel ✘ Tungsten ✔ NULL ✔ NULL NULL

ZnS is white solid which turns yellow on exposure to light ✘ ZnS is precipitated on passing to aqueous ✘ Basic zinc carbonate is ✘ reacts with (g) to give [ ✔ NULL ✔ NULL NULL

Of being electropositive ✘ Of being less reactive ✘ To form complexes which are water soluble ✘ To form salts which are water soluble ✔ NULL ✔ NULL NULL

Fe ✘ Ni ✘ Pt ✘ Co ✔ NULL ✔ NULL NULL

Zn ✘ ZnO ✘ ✘ NO ✔ NULL ✔ NULL NULL

Cu ✘ Cupric oxide ✘ Cuprous oxide ✘ cupric nitrate ✔ NULL ✔ NULL NULL

✘ ✘ CuCl ✘ ✔ NULL ✔ NULL NULL