Question

d. NH4(C5Ohm e. (NH4)2CO3 47. Which of the following are incorrectly paired a) Sr, alkaline earth metal b) Ta, transition metal c) F, halogen d) As, halogen e) , transition metal 48. Which of the following are incorrectly paired? a) Phosphorus, Pr b) Palladium, Pd c) Platinum, Pt d) Lead, Pb e) Potassium, K 49. Which of the following names is incorrect? a) cobalt(II) chloride b) magnesium oxide c) aluminum(III) oxide d) diphosphorus pentoxide e) All of the above names are correct. 50. The correct name for LiCl is a) lithium monochloride b) lithium(I) chloride c) monolithium chloride d) lithium chloride e) monolithium monochloride 51. The correct name for Ca't is a) calcium b) calcium(II) ion c) calcium ion d) calcium(I) ion e) monocalcium ion

Answer 1

47 də As is not a halogen Element Splain halogen Element → F, C1, Br, I only 48 Phosphorus P not Pr m. Pr - Paseodymium Ans incorrectly paired (a) phosphorus – Pr. ug Name of R05 – Phosphorus Penta oxide not diphosphones Pentaxide Ans (d) 60) Correct Name of Lici = Lithium chloride Ans (d) lithium (I) chloride is a stock / & Name of Lich (51) (C) Calcium ion 52 (2) Li H₂PO4 Li HIT H + Lit +24+ +Pou 53 643.5 mi = ? km. mi - mile ? 1 mi = 1.60934 km.) 643.5 mi = 643.5 x 1.60934 km = 1035.6129 = 1.035 X3 Km Ans - ( SJUU JUUUUUUUUUUU Oo 3

5 img2+ = 15², 25, 286 Proton Namber Elechon slumber = 12 = 12-2 = 10 I 12P loe 155 55 & Atomic Number mass Number Atomic x Namber masi Number = 15 31 15% - xex 'x' is an isotope of phosphorus at x hay 31-15= 16 Neutron atomic mass of Phosphoms. = 30.973 Ans (eg A, B, and c 56 HC2H302 - CH3 - coon caq) Ans (9) 51 ag. Solution of concoon is called vinegar Thanks Hope this will hello you Good luck 1000