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Chemistry Mock Test useful for Joint Admission Test for MSc (IIT JAM) NET GATE etc. exams (For Time Accuracy Search “Time Attack”.)
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1. Value of β (nephelauxetic parameter) is maximum for
2. Consider the following statements for catalase. A. It is heme containing protein. B. It catalyzes disproportionation of water. C. Inactive site, the metal is in +3 oxidation state. D. It catalyzes the reduction of dioxygen. The correct statements are :
3. The value of temperature at which 10% of the molecule in a system will be in first excited electronic state if this state is 400 kJ/mol above ground state is
4. In the trigonal prismatic crystal field, the d-orbital with the highest energy is
5. The complex which shows fastest oxidative addition of dihydrogen (H2) is/are,
IrC1(CO)(PPh3)2 & RhC1 (CO) (PPh3)2
6. The collect statement among the following is
7. The quantity remain constant in Grand Canonical Ensemble
8. Which of the following octahedral complex exhibits tetragonal compression
[CoCl2(NH3)4]
9. The colour and transition for the deep coloration of [Fe(NCS)6]3- and [Fe(bpy)3]2+ respectively are,
10. Arrange the following complexes in the order of their respective wavelength of absorption:
(I) [Cr(H2O)6]3+
(II) [Cr(CN)6]3-
(III) [Cr(F)6]3-
11. The correct order for the given properties is: (A) :CH2 < :CC12 < :CF2 (Stability order) (B) N-F < Sb-F < As-F < P-F (Bond energy order) (C) BeF2 > CaF2 > SrF2 (Covalent character order) (D) NH3 > PH3 > AsH3 > SbH3 (Bond angle order)
12. Lanthanoid used in glass blower’s goggles is
13. Select Correct Statement from following regarding f-block elements (i) Absorption spectrum of lanthanoids (III) is largely dependent on nature of ligands. (ii) Magnetic moments of lanthanoids (III) is generally greater than corresponding actinides (III) (iii) Spectra of Heavier actinides (III) ions show resemblance with lanthanoids (III) ions (iv) Ce3+ ion is colourless in aqueous medium. The correct answer is,
14. The correct order of second ionization potential among the following elements : Be, B, C, N and O is
15. The reductive elimination product in [η5-Cp2 Nb(H) η2-(C2H4)]
16. The behaviour of HClO4 in H2SO4 and SbF5 in HF are respectively,
17. A complex of Ni(ll), [NiCl2(PPh3)2] is paramagnetic, the analogous complex of Palladium (II) is diamagnetic, the number of isomers shown by both complexes respectively are
18. The pair of lanthanoids showing strong emission spectrum are,
19. The true statement about base hydrolysis of [Co(CN)5JsBr]3- is
20. Structures of Fe5(CO)15C and Os5(CO)16 respectively are
21. The spinel structure of Cr2FeO4 has cubic close packed arrangement of oxide ions. The fractions of the tetrahedral and octahedral sites occupied by cation respectively are,
22. Among the following metal complexes, the Correct order of their increasing hydration energy is, (I) [Co(H2O)6]2+ (II) [Fe(H2O)6]2+ (III) [V(H2O)6]2+ (IV) [Sc(H2O)6]2+
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