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2. Deselect Answer
(a) 0.325V(b) 0.650V(c) 0.150V(d) 0.500V
(a) -x2 kJ mol-1 (b) +x3 kJ mol-1(c) -x4 kJ mol-1(d) +x1 kJ mol-1
Deselect Answer
9. A magnetic moment of 1.73 B.M. will be shown by one among the following:(a) [Cu(NH3)4]2+(b) [Ni(CN)4]2-(c) TiCl4(d) [CoCl6]4-Deselect Answer
10. Which of the following acid does not exhibit optical isomerism(a) Maleic acid(b) α-amino acid(c) Lactic acid(d) Tartaric acidDeselect Answer
11. Which of the following is the electron deficient molecule?(a) B2H6(b) C2H6(c) PH3(d) SiH4Deselect Answer
12. Which one of the following species does not exist under normal conditions?(a) Be2+(b) Be2(c) B2(d) Li2Deselect Answer
13. The hydrogen ion concentration of a 10-8 M HCl aqueous solution at 298 K (Kw = 10-14) is :(a) 1.0 × 10-6 M(b) 1.0525 × 10-7 M(c) 9.525 × 10-8 M(d) 1.0 × 10-8 MDeselect Answer
14. Reaction of HBr with propene in the presence of peroxide gives:(a) iso-propyl bromide(b) 3-bromo propane(c) allyl bromide(d) n-propyl bromideDeselect Answer
15. In a first order reaction, A⟶B, if k is rate constant and initial concentration of the reaction A is 0.5 M, then the half-life is:Deselect Answer
(a) I & II(b) II & III(c) III & IV(d) II & IV