Class 10  >  General Science(Prelims) by IRS Divey Sethi  >  Test: Periodic Classification of Elements - 1 Download as PDF

Test: Periodic Classification of Elements - 1


Test Description

25 Questions MCQ Test General Science(Prelims) by IRS Divey Sethi | Test: Periodic Classification of Elements - 1

Test: Periodic Classification of Elements - 1 for Class 10 2022 is part of General Science(Prelims) by IRS Divey Sethi preparation. The Test: Periodic Classification of Elements - 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Periodic Classification of Elements - 1 MCQs are made for Class 10 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Periodic Classification of Elements - 1 below.
Solutions of Test: Periodic Classification of Elements - 1 questions in English are available as part of our General Science(Prelims) by IRS Divey Sethi for Class 10 & Test: Periodic Classification of Elements - 1 solutions in Hindi for General Science(Prelims) by IRS Divey Sethi course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Test: Periodic Classification of Elements - 1 | 25 questions in 25 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study General Science(Prelims) by IRS Divey Sethi for Class 10 Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: Periodic Classification of Elements - 1 - Question 1

According to IUPAC recommendations, the number of groups in the long form of the periodic table is :-

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 1

In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table. 

Test: Periodic Classification of Elements - 1 - Question 2

Modern periodic law was proposed by:

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 2

Modern periodic law was proposed by Henry Moseley in 1913. According to the modern periodic law, the properties of the elements and their compounds are a periodic function of their atomic numbers..

Test: Periodic Classification of Elements - 1 - Question 3

The least metallic element of group 1 is :-

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 3

The group 1 elements in the periodic table are known as the alkali metals. They include lithium, sodium and potassium, which all react vigorously with air and water.

Test: Periodic Classification of Elements - 1 - Question 4

In the third period of the periodic table the element having smallest size is        

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 4

As we move along a period, size decreases so, Cl have lowest size among all.

Test: Periodic Classification of Elements - 1 - Question 5

Which of the following statement is not correct about the trends when going from left to right across the periodic table?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 5

The correct option is C.
 The characteristic chemical property of a metal atom is to lose one or more of its electrons to form a positive ion. However, certain metals lose electrons much more readily than others. In particular, cesium (Cs) can give up its valence electron more easily than can lithium (Li).

Test: Periodic Classification of Elements - 1 - Question 6

The law of octaves was proposed by :-

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 6

An English scientist called John Newlands put forward his law of octaves in 1864. He arranged all the elements known at the time into a table in order of relative atomic mass. When he did this, he found that each element was similar to the element eight places further on.

Test: Periodic Classification of Elements - 1 - Question 7

The number of periods in the long form of the periodic table is :-

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 7

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one begining at the far left.

Test: Periodic Classification of Elements - 1 - Question 8

Which of the following has the maximum non-metallic character ?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 8

Non metallic character decreases as we move down the group. In a group, the size of an element increases because there is an addition of new shell and electron  is added in that shell. Hence, fluorine has the most non metallic character. 

Test: Periodic Classification of Elements - 1 - Question 9

Which of the following sets of elements do not belong to the same group ?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 9

We know, Phosphorus ( P) belongs to group 15 , Sulphur (S) belongs to group 16 and chlorine belongs to group ( 17) . So, option ( c) is the correct one.

Test: Periodic Classification of Elements - 1 - Question 10

Which of the following has lowest number of electrons in the valence shell ?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 10

As we can see, the no. of electrons in the valence shell of oxygen (8) is => 6
In valence shell of carbon (6) => 4
In valence shell of Nitrogen (7) => 5
In valence shell of  boron (5) =>  3 
Therefore, boron has the lowest electron in the valence shell. 

Test: Periodic Classification of Elements - 1 - Question 11

An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.        

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 11

The valence electrons of the atomic number 15 has 5 electrons in its outermost shell . Nitrogen also has 5 electrons in it's outer shell. It also belongs to 15 th group and has same chemical properties, others  have 2,8 and 6 in their outermost shell. 

Test: Periodic Classification of Elements - 1 - Question 12

Which of the following has largest atomic size ?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 12

The atomic size of Be is 112 pm, the atomic size of C is 70 pm, the atomic size of oxygen is 60 pm and the atomic size of fluorine is 71 pm. So, the atomic size of Be is largest here. 

Test: Periodic Classification of Elements - 1 - Question 13

Which of the following belongs to group 18 ?

Test: Periodic Classification of Elements - 1 - Question 14

What is the basis of long form of the periodic table ?

Test: Periodic Classification of Elements - 1 - Question 15

Which one is more metallic element ?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 15 Na is sodium And is highly reactive as comes in top of the reactivity series it is highly endothermic.
Test: Periodic Classification of Elements - 1 - Question 16

Element X forms a chloride with the formula XCl2, Which is a solid with a high metingpoint, X would most likely be in the same group of the periodic table as :-

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 16

The correct answer is B as elements of group Na form XCl halide. 
Elements of group Mg form XCl2 halide. 
Elements of group Al form XCl3  halide. 
Elements of group Si form XCl4  halide. 
As an element, X forms a chloride with the formula XCl2  which is solid with a high melting point. X would most likely be in the same group of Mg. 

Test: Periodic Classification of Elements - 1 - Question 17

How many groups and periods are present in the modern periodic table?

Test: Periodic Classification of Elements - 1 - Question 18

Electropositive character of elements in a period ___________ from left to right

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 18

Metallic character decreases across a period from left to right. On the other hand non-metallic character increases with increase in atomic number across a period.

Test: Periodic Classification of Elements - 1 - Question 19

How does the valency vary in going down a group?

Test: Periodic Classification of Elements - 1 - Question 20

What is the nature of an element having atomic number 20?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 20

The element with atomic number 20 is Calcium (Ca) and it has metallic character as it loses two valence electrons easily to complete it's octet. 

Test: Periodic Classification of Elements - 1 - Question 21

Which group elements are called transition metals?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 21

Many scientists describe a "transition metal" as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. In actual practice, the f-block lanthanide and actinide series are also considered transition metals and are called "inner transition metals".

There are a number of properties shared by the transition elements that are not found in other elements, which results from the partially filled d shell. These include
1. the formation of compounds whose color is due to d–d electronic transitions
2. the formation of compounds in many oxidation states, due to the relatively low energy gap between different possible oxidation states[
3. the formation of many paramagnetic compounds due to the presence of unpaired d electrons. A few compounds of main group elements are also paramagnetic (e.g. nitric oxide, oxygen)

Test: Periodic Classification of Elements - 1 - Question 22

What property of all elements in the column of the periodic table as fluorine have in common?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 22

The correct answer is D as All of them have  valence electrons equal to seven and this can accept one electron to complete their octet

Test: Periodic Classification of Elements - 1 - Question 23

Which group of periodic table does Ge belongs to?

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 23

The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within the p-block. In modern IUPAC notation, it is called Group 14.

Test: Periodic Classification of Elements - 1 - Question 24

An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is.        

Test: Periodic Classification of Elements - 1 - Question 25

In Newlands law of octaves elements are arranged in order of

Detailed Solution for Test: Periodic Classification of Elements - 1 - Question 25

In 1864, Newlands arranged the known 56 elements in the order of increasing atomic masses. He observed that the properties of every eighth element are similar to the properties of the first element. Based on this observation, he proposed the Law of Octaves for the classification of elements. Law of Octaves: When the elements are arranged in the increasing order of their atomic masses, the properties of every eighth element are similar to the first.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: Periodic Classification of Elements - 1 Page
In this test you can find the Exam questions for Test: Periodic Classification of Elements - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Periodic Classification of Elements - 1, EduRev gives you an ample number of Online tests for practice