D and F Block Elements

Fine the magnetic moment of a divalent ion in aqueous solution if its atomic

Fine the magnetic moment of a divalent ion in aqueous solution if its atomic number is 25 Options (a) 3.9…

Vanadium (III) oxide is a strong

Vanadium (III) oxide is a strong Options (a) drying agent (b) oxidising agent (c) reducing agent (d) wetting agent Correct…

In the brown ring test for the nitrate ion, the brown colour is due to

In the brown ring test for the nitrate ion, the brown colour is due to Options (a) [Fe(H₂O)₅NO]²⁺ (b) [Fe(H₂O)₅NO]³⁺…

Lanthanide contraction is due to increase in

Lanthanide contraction is due to increase in Options (a) shielding by 4f electrons (b) atomic number (c) effective nuclear charge…

Many transition metals and their compounds exhibit

Many transition metals and their compounds exhibit Options (a) perimagnetic behaviour (b) vander waal's behaviour (c) paramagnetic behaviour (d) diamagnetic…

The term platforming is

The term platforming is Options (a) platinum painting (b) flat sheet of platinum (c) platinum coating (d) platinum used as…

In the electrolytic refining of zinc

In the electrolytic refining of zinc Options (a) graphite is at the anode (b) the impure metals is at the…

All Cu(II) halides are known except the iodide. The reason for it is that

All Cu(II) halides are known except the iodide. The reason for it is that Options (a) iodide is a bulky…

Which one of the following statements about transition elements is incorrect

Which one of the following statements about transition elements is incorrect Options (a) They show variable oxidation states (b) All…

Which of the following is the green coloured powder produced when ammonium

Which of the following is the green coloured powder produced when ammonium dichromate is used in fire works Options (a)…