20. Ancmpty graduated sylinder weighs 45.872 & After 20.0 ml. oraliquid is added the cylinder and its contents weigh 77.

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20 Ancmpty Graduated Sylinder Weighs 45 872 After 20 0 Ml Oraliquid Is Added The Cylinder And Its Contents Weigh 77 1 (44.37 KiB) Viewed 67 times

20. Ancmpty graduated sylinder weighs 45.872 & After 20.0 ml. oraliquid is added the cylinder and its contents weigh 77.7572 . What is the density of the liquid in g/mL? (a) 1.59 (b) 1.594 (c) 3.89 (d) 2.29 (e) 2.293 21. Which of the following reactions will not occur? ) Mg(s) + ZnSO4 (aq) → Zn (s) + MgSO4 (aq) (II) Pb() + 2 Ag(NO3)2 (aq) + 2 Ag (s) + Pb(NO3)2 (24) (II) Zn(s) + Cu? (aq) → Cu (s) + (aq) (IV) 2 Fc (s) + 3 AIC (1) 3 AI (5) + 2 FC (ag) (a) only (b) II and HD (c) II and I (d) I and II only (e) only IV 22. Forn=3. what are the possible values of l? (a) 31.2, 1 (b) 4.3.2 (e) can not be determine (c) 3,2,1,0 (d) 21.0 23. What are the correct hybridization and approximate bond angle around boron atom in BF3? (a) sp. 120 (b) sp. 109.5 (c) sp. 107 (d) sp. 180° (e) sp. 107