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Test: Periodic Properties- 3


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30 Questions MCQ Test Inorganic Chemistry | Test: Periodic Properties- 3

Test: Periodic Properties- 3 for Chemistry 2022 is part of Inorganic Chemistry preparation. The Test: Periodic Properties- 3 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Periodic Properties- 3 MCQs are made for Chemistry 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Periodic Properties- 3 below.
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Test: Periodic Properties- 3 - Question 1

Which is not similar characteristic(s) about the electronic configuration of Be, Mg, Ca:

Test: Periodic Properties- 3 - Question 2

The most electropositive element possesses the electronic configuration:

Test: Periodic Properties- 3 - Question 3

Which one of the following elements shows both positive and negative oxidation states:

Test: Periodic Properties- 3 - Question 4

Which of the following arrangements shows the correct order of decreasing paramagnetism:

Detailed Solution for Test: Periodic Properties- 3 - Question 4

Correct Answer :- b

Explanation : 

The correct order of decreasing paramagnetism is :

N > O > Al > Ca

Test: Periodic Properties- 3 - Question 5

Which of the following bond is strongest

Detailed Solution for Test: Periodic Properties- 3 - Question 5

Because of small differences in electronegativities, the C−H bond is generally regarded as being non-polar. The real reason here is atomic size. The hydrogen atom is much smaller than the carbon atom. Smaller bonds lead to higher bond energy; therefore C−H bond has higher bond enthalpy than the C−C bond.

Test: Periodic Properties- 3 - Question 6

The elements with the lowest atomic number that has a ground state electronic configuration of (n – 1) d6ns2 is located in the:

Test: Periodic Properties- 3 - Question 7

The atomic numbers of the metallic and non-metallic elements which are liquid at room temperature respectively are:

Test: Periodic Properties- 3 - Question 8

In the periodic table, metallic character of the elements shows one of the following trend:

Test: Periodic Properties- 3 - Question 9

Which of the following represents the correct order of increasing first ionization enthalpy for Ca,Ba,S,Se andAr?

Test: Periodic Properties- 3 - Question 10

Transit ion metals are not characterized by:

Test: Periodic Properties- 3 - Question 11

Sodium generally does not shown oxidation state of +2, because of its:

Test: Periodic Properties- 3 - Question 12

Which of the following pairs of molecules have the almost identical bond dissociation energy:

Test: Periodic Properties- 3 - Question 13

According to modern periodic law the properties of elements repeat at regular intervals when the elements are arranged in order of:

Test: Periodic Properties- 3 - Question 14

Consider the following four elements, which are represented according to long form of periodic table.

Here W, Y and Z are left, up and right elements with respect to the element ‘X’ and ‘X’ belongs to 16th group and 3rd period. Then according to given informat ion the incorrect statement regarding given elements is:

Test: Periodic Properties- 3 - Question 15

In the fourth period of the periodic table, how many elements have one or more 4d electrons:

Test: Periodic Properties- 3 - Question 16

Assuming that elements are formed to complete the seventh period, what would be the atomic number of the alkaline earth metal of the eighth period:

Test: Periodic Properties- 3 - Question 17

Which of the following represents an excited state of an atom:

Test: Periodic Properties- 3 - Question 18

Choose the correct statement regarding transition elements:

Test: Periodic Properties- 3 - Question 19

Which one of the following is a different pair:

Test: Periodic Properties- 3 - Question 20

Zn and Cd metals do not show variable valency because:

Test: Periodic Properties- 3 - Question 21

A compound contains three elements A, B and C, if the oxidation number of A = +2, B = +5 and C = –2, the possible formula of the compound is:

Detailed Solution for Test: Periodic Properties- 3 - Question 21

 

A3(BC4)2

=3×2+[5+(−2×4)]2=0

.

Test: Periodic Properties- 3 - Question 22

The period number and group number of “Tantalum” (Z = 73) are respectively:

Test: Periodic Properties- 3 - Question 23

Which of the following pair of elements belongs to the same period:

Detailed Solution for Test: Periodic Properties- 3 - Question 23

Both Calcium and Zinc belongs to period 4

Test: Periodic Properties- 3 - Question 24

Consider the following electronic configuration of an element (P):

[Xe] 4f145d16s2

The correct statement about element ‘P’ is:

Test: Periodic Properties- 3 - Question 25

Which of the following metal is highest electropositive (metallic) in nature:

Test: Periodic Properties- 3 - Question 26

Which of the following species must have maximum number of electrons in ‘dxy’ orbital:

Test: Periodic Properties- 3 - Question 27

Which property decreases from left to right across the periodic table and increases from top to bottom:

(I) Atomic radius
(II) Electronegativity
(III) Ionization energy
(IV) Metallic character

Test: Periodic Properties- 3 - Question 28

Consider the following information about element P and Q:

Then formula of the compound formed by P and Q element is:

Test: Periodic Properties- 3 - Question 29

Which electronic configuration must represent an atom in an excited state:

Test: Periodic Properties- 3 - Question 30

Among NaF , NaCl , NaBr and Nal , the NaF has highest melting point because

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