Practice Sheets & eNotes Metals & Non-Metals

Metals and non metals Worksheet-7

Multiple-Choice Question (One Option Correct):

31. Arrange the following metals in the order of their decreasing chemical reactivities. Mg, Cu, Fe, Na, Zn, Pb, Ca

(A) Mg > Cu > Na > Zn > Fe > Pb > Ca

(B) Na > Zn > Fe > Pb > Cu > Mg > Ca

(C) Na > Mg > Ca > Zn > Fe > Cu

(D) Zn > Fe > Na > Mg > Ca > Cu > Pb

Metals and non metals Worksheet-8

Multiple-Choice Question (One Option Correct):

41. What type of bond is formed between atoms of element with atomic numbers- x – 11, y – 17

(A) Covalent

(B) Ionic

(C) No compound can be formed

(D) Any of the bond can be formed

Metals and non metals Worksheet-9

Multiple-Choice Question (One Option Correct):

51. The oil used in froth floatation process for the concentration of ores is

(A) Coconut oil    (B) Olive oil         (C) Pine oil           (D) None of these

52. Heating  of an ore in air is known as–

(A) Roasting        (B) Calcination    (C) Smelling         (D) Bassemerisation