quiz 1 - s3

which of the following represents the electronic configuration of one of the 1B group

• 2, 8 , 1

• 2 , 8 , 18 , 1

• 2 , 8 , 15 , 2

• 2 , 8 , 8

the general electronic configuration of the elements of the second transition series is

• [Ar], 3d ^{1: 10}, 4s²

• [Ar], 3d ^{1: 10}, 4s ^1:2

• [Kr], 4d ^1:10, 5s ^1:2

• [Kr], 4d ^{1 : 10}, 4s²

oils are converted into margarine in

• hydration reaction

• eliminating oxygen

• hydrogenation reaction

• eliminating hydrogen

which of the following electronic configuration belongs to a main transition element

• 1s², 2s², 2p⁶, 3s², 3p⁶, 4s²

• 1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d²

• 1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶

• 1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p¹

what is the choice which represents a compound, an element and a mixture

• water gas, cobalt and ammonia

• chromium, pure water and zinc

• manganese dioxide, hydrogen and ammonia

• cobalt, propane and polyethene

which of the following is the most rigid

• iron

• lead

• nickel

• titanium

read the table then choose the correct order of the element (A), (B), (C) and (D)

• Fe, Ni, Cu, Mn

• Mn, V, Fe, Zn

• V, Zn, Mn, Fe

• Fe, Mn, Ni, Cu

all the following elements enter in the manufacture of batteries except

• V

• Ni

• Cd

• Co

which of the following contains the largest number of elements

• VI group

• I B group

• all are equal

• VIII group

which of the following is the most abundant metal in the earth crust

• oxygen

• scandium

• iron

• copper