Chemistry Transition Elements MCQs Chapter 6 Class 12

Created on February 10, 2022 By Ali Durrani

Chemistry Ch 6 Class 12

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1 / 17

ransition elements are colored because of:

d-d transition

d-p transition

p-p transition

s-d transition

2 / 17

d-d transitions in transition metals gives?

Crystalline structure

characteristic color

Hardness

d) Higher reactivity

3 / 17

Transition elements are colored in which type of compounds?

Ionic

Covalent

Both a and b

None of these

4 / 17

Which of the following has the lowest boiling point?

Titanium

Chromium

Manganese

Vanadium

5 / 17

Which of the following doesn’t has an incomplete d-orbital?

Ag

Au

Cu

All of these

6 / 17

Which element of 5th group doesn’t have unpaired valence electrons in d-sub shell?

V

Nb

Ta

La

7 / 17

What is NOT true about K2Cr2O7?

Blue crystalline solid

Not soluble in water

Strong oxidizing agent

Used in formation of lead chromate

8 / 17

Acidified K2Cr2O7 is also called:

Ceramic acid

Chromic Acid

Dichromate

None of these

9 / 17

What is not true about transition metals?

They can make colored complexes

They have only one valency

They can be used as a catalyst d)

They are d block elements

10 / 17

lanthanide Contraction is phenomenon of block :

f block

s block

d block

P block

11 / 17

Which of following transition complex will have most stable square planar structure?

(MnCI4)2-

PCI5

Cu(NI13)4)2-

(Co(N143)6)2-

12 / 17

Which of the following states of copper Is more stable?

Cu+2

Cu+1

Both a and b

Depends on environment

13 / 17

Which of the following Is the reason that Iron is the most abundant element?

Oldest metal

Binding energy

Less stability

Ferromagnetic

14 / 17

Which element does not show magnetic properties?

Zn

Fe

Co

Mn

15 / 17

Which metal is not attracted by magnet?

Copper

Zinc

Iron

Both a & b

16 / 17

Number of unpaired electrons in ferrous ion is:

2

3

5

4

17 / 17

Higher Transition elements are:

d-type

f-type

Both a and b

None of these

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Chemistry Transition Elements MCQs Chapter 6 Class 12

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