In which of the following pairs the difference between the covalent radii of two metal is maximum :- 1 K, Ca 2 Mn, Fe 3 Co, Ni Cr, Mn

In which of the following pairs the difference between the covalent radii of the two metals is maximum-

In which of the following pairs, the difference between the convalent radii of the two metals is maximum.

In which two metals in the following pairs the difference between the covalent radii is maximum?

In which two metals in the following pairs the difference between the ionic radii is maximum?

Which of the following has the highest I.E.?Ti,Mn,Fe,Ni

Which of the following has the lowest melting point?V,Cr,Fe,Mn

Which of the following element has maximum first ionisation potential? 1)V 2)Ti 3)Cr 4)Mn

Which of the following Mn^(+2) ,Ni^(+2),Ti^(+2),V^(+2) smallest radii?

Which of the following arrangements does not represent the correct order of the property stated against it ? (i) Ni^(2+) lt Co^(2+) lt Fe^(2+) lt Mn^(2+) : ionic size (ii) Co^(3+) lt Fe^(3+) lt Cr^(3+) lt Sc^(3+) : stability in aqueious solution (iii) Sc lt Ti lt Cr lt Mn : number of oxidation states (iv) V^(2+) lt Cr^(2+) lt Mn^(2+) lt Fe^(2+) : paramagnetic behaviour

Which of the following arrangements represent the correct order of the property stated against it ? (i) Ni^(2+) lt Co^(2+) lt Fe^(2+) lt Mn^(2+) : ionic size (ii) Co^(3+) lt Fe^(3+) lt Cr^(3+) lt Sc^(3+) : stability in aqueious solution (iii) Sc lt Ti lt Cr lt Mn : number of oxidation states (iv) V^(2+) lt Cr^(2+) lt Mn^(2+) lt Fe^(2+) : paramagnetic behaviour