Quizz 12

Q2. The melting and boiling point along 2nd and 3rd period

• A. Increases from left to right

• B. Decrease from left to right

• C. increases upto group IVA and then decreases

• D. decreases up to group IV A and then increases

Q.11 Which pair of transition elements shows abnormal electronic configuration?

• A. Sc and Zn

• C. Cu and Sc

• B. Zn and Cu

• D. Cu and Cr

Q.12 In which of the following pairs, the radius of the second atom is smaller than that of the first atom

• A. Mg, Na

• B. Sr, Ca

• C. N, P

• D. Cl, Br

Q.13 Which property of the first six continuously increases numerically?

• A. Atomic radius

• C. First ionization energy

• B.Maximum oxidation state in oxide

• D. Melting point

highest oxidation state of manganese is

• +7

• -7

• +6

• +4

highest oxidation state in all transition elements is

• +8

• +7

• +5

• +1

which of the foloowing are responsible for the color developed in transition metal compounds?

• s - orbital

• p orbital

• d - orbital

• f - orbital

all 3d elements show an oxidation state of

• +1

• +2

• +3

• 0

stability of Cu metal is due to ___ filling of d-orbital?

• half

• completely

• partially

• quarterly

which of the elements has 7 electrons in d subshells?

• zn

• cobalt

• copper

• iron