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Test: d & f-Block Elements - NEET MCQ


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25 Questions MCQ Test Chemistry Class 12 - Test: d & f-Block Elements

Test: d & f-Block Elements for NEET 2024 is part of Chemistry Class 12 preparation. The Test: d & f-Block Elements questions and answers have been prepared according to the NEET exam syllabus.The Test: d & f-Block Elements MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: d & f-Block Elements below.
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Test: d & f-Block Elements - Question 1

Which among the following is not considered as a part of transition elements?

Detailed Solution for Test: d & f-Block Elements - Question 1

A transition metal is one that forms one or more stable ions which have incompletely filled d orbitals. On the basis of this definition, scandium and zinc do not count as transition metals - even though they are members of the d block.

Test: d & f-Block Elements - Question 2

Which among the following transition metal has lowest melting point?

Detailed Solution for Test: d & f-Block Elements - Question 2

Zn has lowest melting point because it doesnot have any unpaired electrons.

Test: d & f-Block Elements - Question 3

Transition metals with highest melting point is

Detailed Solution for Test: d & f-Block Elements - Question 3

W belongs to 5d series and also it have lot of unpaired electrons thus it forms strong metallic bonding.

Test: d & f-Block Elements - Question 4

Transition metals with lowest melting point is

Detailed Solution for Test: d & f-Block Elements - Question 4

Zinc (Zn) has the lowest melting point in 3d series because of the absence of d-electrons.

Test: d & f-Block Elements - Question 5

Which is the most stable oxidation state of iron?

Detailed Solution for Test: d & f-Block Elements - Question 5

Fe has d5 configuration in +3 oxidation state.

Test: d & f-Block Elements - Question 6

Electronic configuration of Cu3+ is

Detailed Solution for Test: d & f-Block Elements - Question 6

Cu has atomic number 29.

Test: d & f-Block Elements - Question 7

Maximum magnetic moment is shown by

Detailed Solution for Test: d & f-Block Elements - Question 7

Magnetic moment is maximum for the element having maximum unpaired electrons.

Test: d & f-Block Elements - Question 8

Maximum oxidation state is shown by

Detailed Solution for Test: d & f-Block Elements - Question 8

Os shows maximum oxidation state of +8.

Test: d & f-Block Elements - Question 9

Which one of the following compound is deliquescent?

Detailed Solution for Test: d & f-Block Elements - Question 9

ZnClis deliquescent.

Test: d & f-Block Elements - Question 10

Which of the following ion has smallest radii?

Detailed Solution for Test: d & f-Block Elements - Question 10

In period when we move from left to right in a period atomic radii 1st decreases till nickel then starts increasing so Ni2+ has smallest radii.

Test: d & f-Block Elements - Question 11

Which of the following pairs of ions have same paramagnetic moment?

Detailed Solution for Test: d & f-Block Elements - Question 11

Cu2+, Ti3+ will have same unpaired electrons and hence same paramagnetic moment.

*Multiple options can be correct
Test: d & f-Block Elements - Question 12

Which of the following metals have only one oxidation state?

Detailed Solution for Test: d & f-Block Elements - Question 12

Sc,Al has only one oxidation state i.e. +3.

Co,Fe has various oxidation states; most common are +2 and +3.

Test: d & f-Block Elements - Question 13

Mohr’s salt is a

Detailed Solution for Test: d & f-Block Elements - Question 13

Mohr salt is an example of double salt. Mohr Salt is 

FeSO4 . (NH4)2 SO4.6H2O

Test: d & f-Block Elements - Question 14

Red hot steel rods on suddenly immersing in water become

Detailed Solution for Test: d & f-Block Elements - Question 14

Red hot steel rods on suddenly immersing in water become hard and brittle.

Test: d & f-Block Elements - Question 15

Which of the following methods is based on distribution law?

Detailed Solution for Test: d & f-Block Elements - Question 15

Parkes process is a process for removing silver from Pb. It is an example of Liquid liquid extractions

Test: d & f-Block Elements - Question 16

Which is called chromic acid?

Detailed Solution for Test: d & f-Block Elements - Question 16

Chromic Acid is a naturally occurring oxide with a formula H2CrO4.

Test: d & f-Block Elements - Question 17

Which one of the following combines with Fe2+ ion to form a brown complex?

Detailed Solution for Test: d & f-Block Elements - Question 17

[Fe(H2O)5NO]2+is brown color complex.

Test: d & f-Block Elements - Question 18

Lucas reagent is

Detailed Solution for Test: d & f-Block Elements - Question 18

Lucas Test is done to distinguish primary secondary and tertiary alcohols. Lucas reagent is ZnCl2 + HC

Test: d & f-Block Elements - Question 19

Vitamin B12 contains?

Detailed Solution for Test: d & f-Block Elements - Question 19

Vitamin B12 contains Co3+.

Test: d & f-Block Elements - Question 20

Which is least soluble in water?

Detailed Solution for Test: d & f-Block Elements - Question 20

Ag2S is least soluble in water.

Test: d & f-Block Elements - Question 21

A reduction in the atomic size with increase in atomic number is characteristic of the elements of

Detailed Solution for Test: d & f-Block Elements - Question 21

In f block elements with increase in atomic number atomic radii decreases smoothly.

Test: d & f-Block Elements - Question 22

Nitrous oxide is evolved when Zn is treated with

Detailed Solution for Test: d & f-Block Elements - Question 22

4Zn + 10HNO3 → 4Zn(NO3)2 + N2O + 5H2O

Test: d & f-Block Elements - Question 23

Ferrous sulphate on heating gives

Detailed Solution for Test: d & f-Block Elements - Question 23

FeSOon heating gives SO2 and SO3

Test: d & f-Block Elements - Question 24

In the reaction, SnCl2 + HgCl2 → A + SnCl4

Detailed Solution for Test: d & f-Block Elements - Question 24

SnCl2 + HgCl2 → Hg + SnCl4

Test: d & f-Block Elements - Question 25

Ag+ ion is isoelectronic with

Detailed Solution for Test: d & f-Block Elements - Question 25

Ag+ is isoelectronic with Cd2+

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