The correct order of increasing basicity of the given conjugate bases (R=CH3) is
Relative permittivity and permeability of a material are ϵrandμr, respectively. Which of the following values of these quantities are allowed for a diamagnetic material ?
Consider a family of circles which are passing through the point (−1,1)and are tangent to x-axis. If (h, k) are the co-ordinates of the centre of the circles, then the set of values of k is given by the interval
The coodination number and the oxidation state of the element 'E' in the complex [E(en)2(C2O4)]NO2 (where (en) is ethylene diamine) are, respectively,