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\(^{-1}\))
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. \([Fe(CN)_6]^{3-}\)
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
Which of the following orders are correct regarding their covalent character?(i) \( \text{KF} < \text{KI} \)(ii) \( \text{LiF} < \text{KF} \)(iii) \( \text{SnCl}_2 < \text{SnCl}_4 \)(iv) \( \text{NaCl} < \text{CuCl} \)
Observe the following sets:
Which of the above sets are correctly matched?
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?
Arrange the following in decreasing order of their basicity:
