Being hygroscopic, sodium dichromate, Na2Cr2O7 cannot be used in volumetric analysis. All other given statements are true.
NEET UG 2012 — Chemistry Inorganic Chemistry
Which of the statements is not true?
Held on 30 Apr 2012 · Verified 9 Jul 2026.
On passing H2 S through acidified K2Cr2O7 solution, a milky colour is observed
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
K2Cr2O7 solution in acidic medium is orange
K2Cr2O7 solution becomes yellow on increasing the pH beyond 7
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Which of the following is the most electronegative element?
Out of the following complex compounds, which of the compound will be having the minimum conductance in solution?
Match List-I with List-II $\begin{array}{|l|l|l|l|}\hline & \text{List - I} & & \text{List - II} \\\hline \text{A}. & \text{Haber process} & \text{(i)} & \text {Fe catalyst} \\\hline \text{B.} & \text{Wacker oxidation} & \text{(ii)} & \mathrm{PdCl}_2 \\\hline \text{C.} & \text{Wilkinson catalyst} & \text{(iii)} & \left[\left(\mathrm{PPh}_3\right)_3 \mathrm{RhCl}\right] \\\hline \text{D.} & \text{Ziegler catalyst} & \text{(iv)} & \mathrm{TiCl}_4 \text{ with } \mathrm{Al}\left(\mathrm{CH}_3\right)_3 \\\hline\end{array}$ Choose the correct answer from the options given below :
Identify the correct orders against the property mentioned (A) $\mathrm{H}_2 \mathrm{O}\gt\mathrm{NH}_3\gt\mathrm{CHCl}_3$ - dipole moment (B) $\mathrm{XeF}_4\gt\mathrm{XeO}_3\gt\mathrm{XeF}_2-$ number of lone pairs on central atom (C) $\mathrm{O}-\mathrm{H}\gt\mathrm{C}-\mathrm{H}\gt\mathrm{N}-\mathrm{O}-$ bond length (D) $\mathrm{N}_2\gt\mathrm{O}_2\gt\mathrm{H}_2$ - bond enthalpy Choose the correct answer from the options given below :
Match List - I with List - II $\begin{array}{llll} & \text{List-I} & & \text{List-II} \\A. & \mathrm{XeO}_3 & I. & \mathrm{sp}^3 \mathrm{~d}, \text{linear} \\B. & \mathrm{XeF}_2 & II. & \mathrm{sp}^3 ; \text{pyramidal} \\C. & \mathrm{XeOF}_4 & III. & \mathrm{sp}^3 \mathrm{~d}^3 ; \text{distorted octahedral} \\D. & \mathrm{XeF}_6 & IV. & \mathrm{sp}^3 \mathrm{~d}^2 ; \text{square pyramidal}\end{array}$ Choose the correct answer from the options given below:
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