D & F Block Flashcards
Chemical reactions & physical properties
Which elements are present in 3d series ?
Sc, Ti , V , Cr , Mn , Fe , Co , Ni , Cu , Zn
Elements present in 4d series
Y , Zr , Nb , Mo , Tc , Ru , Rh , Pd , Ag , Cd
Elements present in 5d series
La , Hf , Ta , W , Re , Os , Ir , Pt , Au , Hg
Which d block elements are not transition elements
Zn , Hg , Cd
Order of melting point
Increase with increase of unpaired electron
Exception Tc & Mn
Why atomic radius of 4D and 5D series are almost same
Lanthanide contraction
Order of atomic radius of 3D series
Decreases from scandium to manganese
Constant for iron Cobalt and nickel
Increases for copper and zinc
Which elements can stabilize higher oxidation number of transition Element
Oxygen and fluorine
Which mineral acids can react with copper
Nitric acid and hot sulphuric acid
Why copper + 1 is not stable in aqueous medium
Copper 2 + is stable due to more negative hydration energy
Catalyst used in contact process
V2O5
Catalyst used in hydrogenation
Nickel Platinum palladium
Catalyst used in ostworld process
Platinum rhodium
Brass is a alloy of
Couple and zinc
Bronze is an alloy of
Copper and tin
