d-Block Elements

The %age of C in different types of soft iron products is in the order of

• Cast iron > wrought iron > steel

• Wrought iron > steel > cast iron

• Cast iron > steel > wrought iron

• Cast iron = steel > wrought iron

Which is in different phase from other metals?

• Ni

• Hg

• Cd

• Na

Cl- is the example of

• Anionic ligant

• Cationic ligant

• Neutral ligant

• None

1. [Co(NH₃)₄]⁺² will form structure

• Square planner

• Tetrahedral

• Octahedral

• Trigonal bipyramidal

is used to measure the magnetic movement

• Physical balance

• Guoy’s balance

• Electrical balance

• None

The Mn3+ has color

• Violet

• Green

• Red/brown

• no color

Many transition metals and their compounds are

• Diamagnetic

• Paramagnetic

• Neither a nor b

• none

Which is not a bidentate ligand

• C₂O^-2

• CO^-2

• SO^-2

• None

The trace metal present in insulin is.

• Mn

• Zn

• Mg

• Sr

Which of the following do not have variable valency?

• Cobalt

• Iron

• Magnaese

• Zinc