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Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
| Column I | Column II |
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| a. $Co^{3+}$ | i. $\sqrt{8}BM$ | | b. $Cr^{3+}$ | ii. $\sqrt{35}BM$ | | c. $Fe^{3+}$ | iii. $\sqrt{3}BM$ | | d. $Ni^{2+}$ | iv. $sqrt{24}BM$ | | v. $sqrt{15}BM$ |
a b c d
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Which one of the following ions exhibits d-d transition and paramagnetism as well?
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Iron carbonyl, $Fe(CO)_5$ is
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The type of isomerism shown by the complex $[CoCl_2(en)_2]$ is
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The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are
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Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
a. $60 mL\dfrac{M}{10}HCL+40 mL\dfrac{M}{10} NaOH$
b. $55 mL\dfrac{M}{10}HCL+45 mL\dfrac{M}{10} NaOH$
c. $75 mL\dfrac{M}{5}HCL+25 mL\dfrac{M}{5} NaOH$
d. $100 mL\dfrac{M}{10}HCL+100 mL\dfrac{M}{10} NaOH$
pH of which one of them will be equal to 1?
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On which of the following properties does the coagulating power of an ion depend?
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Given van der Waals constant for $NH_3, H_2, O_2$ and $CO_2$ are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?
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The solubility of $BaSO_4$ in water is 2.42 × $10^{–3} gL^{–1}$ at 298 K. The value of its solubility product $(K_{sp})$ will be
(Given molar mass of
$BaSO_4 = 233 g mol–1)$
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In which case is number of molecules of water maximum?
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