Arrange the following in the increasing order of number of unpaired electrons present in the central metal ion: I. \([MnCl_6]^{4-}\) II. \([FeF_6]^{3-}\) III. \([Mn(CN)_6]^{3-}\) IV. \([Fe(CN)_6]^{3-}\)
Observe the following sets:
Which of the above sets are correctly matched?
The density of \(\beta\)-Fe is 7.6 g/cm\(^3\). It crystallizes in a cubic lattice with \( a = 290 \) pm. What is the value of \( Z \)? (\( Fe = 56 \) g/mol, \( N_A = 6.022 \times 10^{23} \) mol\(^{-1}\))
A metal catalyst (X) is used in the catalytic converter of automobiles. This prevents the release of gas Y into the atmosphere. What are X and Y respectively?
The volume of an ideal gas contracts from 10.0 L to 2.0 L under an applied pressure of 2.0 atm. During contraction, the system also evolved 90 J of heat. The change in internal energy (in J) involved in the system is (1 L·atm = 101.3 J):
The graph shown below represents the variation of probability density, \( \Psi(r) \), with distance \( r \) of the electron from the nucleus. This represents:
The RMS velocity (\(v_{{rms}}\)) of one mole of an ideal gas was measured at different temperatures and the following graph is obtained. What is the slope (m) of the straight line?
The number of \( d \) electrons in Fe is equal to which of the following?(i) Total number of \( s \)-electrons of Mg(ii) Total number of \( p \)-electrons of Cl (iii) Total number of \( p \)-electrons of Ne
