S3-Q1-main transition elements

The compound which is difficult to be obtained is ...........

• ScCl₃

• MnSO₄

• TiCl₄

• Mn(SO₄)₄

The second most abundant transition element after the iron is ..........

• copper

• iron

• titanium

• scandium

the highest oxidation number can be obtained from ....... ions

• Fe

• Mn

• V

• Ni

......... is used as alloy with manganese in the manufacturing of drinking cans

• steel

• iron

• aluminum

• titanium

Element used in oil hydrogenation as catalyst is .....

• copper

• nickel

• titanium

• chromium

The metal used as alloy in manufacturing of heating coil is .............

• Copper

• Nickel

• Titanium

• Scandium

The atomic radius of ....... is abnormal compared to the other atomic radii sequence in the first transition series elements.

• scandium

• copper

• nickel

• there is no correct answer

Which of the following compound(s) is/are coloured ?

(you can choose one or more)

• ZnO

• Cu(OH)₂

• Cr₂O₃

• ScCl₃

......... is used with iron in manufacturing of car spring alloys

• Ti

• V

• Sc

• Al

Fehling 's reagent is ........ (you can choose one or more)

• composed of copper compound

• used to convert water gas to fuel

• detect the blood glucose level

• composed of zinc compound