Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Class 10 MCQ

# Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Class 10 MCQ

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## 30 Questions MCQ Test - Periodic Classification Of Elements - Class 10 Science (Compulsory Test)

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Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 1

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

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 2

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

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 3

### How does the valency vary in going down a group?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 4

An element P belongs to the second period and group 13. What is the formula of its oxide?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 5

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

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 6

Which group elements are called transition metals?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 7

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

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 8

Which group of periodic table does Ge belongs to ?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 9

Match the following with correct response.
(1) Alkali metals
(2) Alkaline earth metal
(3) Halogen
(4) Inert gas

(A) Magnesium
(B) Krypton
(C) chlorine
(D) Sodium

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 10

In Newlands law of octaves elements are arranged in order of

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 11

How many elements did Mendeleev classify?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 12

How many elements are placed in lanthanide and actinide series?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 13

Match the following with correct response.
(1) Dobereiner
(2) Newland
(3) Mendeleev
(4) Modern Periodic law

(A) Atomic mass
(C) Atomic number
(D) Octaves

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 14

In the modern periodic table which are the metals among the first 10 elements?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 15

Nitrogen and phosphorus belong to the group 15 of the periodic table. Which of these will be more electronegative?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 16

Metallic character ____________ down a group

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 17

Arrange the following elements in the decreasing order of atomic size?Li, Be, B, C, N, O, F

Detailed Solution for Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 17

Decreasing order of atomic size:
Li > Be > B > C > N > O > F

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 18

What is the number of valence electrons in the last element of 3rd period?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 19

Match the following with correct response.
(1) Periods
(2) Groups
(3) Eight groups
(4) Eighteen groups

(A) Vertical rows
(B) Mendeleev's Periodic table
(C) Horizontal rows
(D) Modern periodic table

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 20

Statement A : Electron affinity of fluorine is more than that of chlorine.

Statement B : Carbon monoxide is an acidic oxide.

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 21

What is the atomic number of the first element of the lanthanide series?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 22

Which of the following is not the limitation of Mendeleev’s periodic table?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 23

Which of the following element forms dipositive ion very easily?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 24

Which one has the bigger size?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 25

Give the symbol for the most reactive non-metal of group 17

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 26

Which type of compound is formed by the elements of group 1 and group 17 ?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 27

The second ionization energy is greater than the first because

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 28

Elements having same valence electrons are placed in same group but there is an exception with -

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 29

P, Q, R are elements of Dobereiner’s triads. If the atomic mass of P is 7 and that of Q is 23, What will be the atomic mass of R?

Periodic Classification Of Elements - Class 10 Science (Compulsory Test) - Question 30

Which element was discovered after Mendeleev gave the periodic table?

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