Test Details

Periodic Classification of Elements

Feb 04, 3:15 PM

120 minutes

Feb 04, 5:15 PM

50.0 marks

MCQ

50 questions

sonikaanandacademy

Sonika Agarwal 25 years teching experience

Class Details

Maths

physics

chemistry

Class 10

Maths

physics

chemistry

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Question Text

Question 2 :
Which of the given elements A, B, C, D and E with atomic number $2,\,3,\,7,\,10$ and $30$ respectively belong to the same period?

Question 4 :
In Newlands' table, which of the following elements was not placed in the same group in which cobalt and nickel were present?

Question 6 :
Statement: In Dobernier classification of elements, the atomic weight of the middle element is equal to the average of the extreme elements of a triad. State whether the given statement is true or false.

Question 9 :
The placement of elements in the Newlands' table was compared to :

Question 10 :
What is the name for the horizontal rows of the periodic table?

Question 11 :
The name given by Newlands to the arrangement created by him was :

Question 12 :
The law of triad is applicable to a group of :

Question 13 :
The number of periods present in the long form of the periodic table are:

Question 16 :
Isotopes could find a position in Mendeleev's periodic table. State whether the given statement is true or false.

Question 17 :
On the basis of atomic _______, the modern periodic table is arranged.

Question 18 :
The law used by Newlands to arrange elements is known as Newlands Law of Octave .

Question 19 :
Assertion: The placement of isotopes in Mendeleev's periodic table overcome in the modern periodic table. Reason: In modern periodic table, the elements have been allotted places based on their atomic numbers

Question 20 :
Arrange the following elements in the order of their decreasing metallic character.Na, Si, Cl, Mg, Al

Question 21 :
In which of the following period a maximum number of $32$ elements are present?

Question 22 :
Which of the following is a correct statement about metallic atoms?

Question 23 :
Refer to changes in properties of elements  on moving left to right across a period of the periodic table.For each property , choose the letter corresponding to the correct answer from A,B,C and D. Atomic Size :

Question 24 :
Atomic number _______ by one unit on moving from right to left.

Question 25 :
Which periods were not divided into two series in the Mendeleev's periodic table?

Question 27 :
The element placed with cerium, in the table formed by Newlands' was :

Question 34 :
Mendeleev used a Sanskrit numeral before the names of the predicted elements. What was the term used for it?

Question 36 :
Electronic configuration of element T is 2, 8, 7. What is the period number of T ?

Question 37 :
Whose name is not associated with the development of periodic Table

Question 40 :
Out of the elements with atomic numbers givenbelow which one would be a halogen?

Question 43 :
In the periodic table, vertical columns of elements are called ..... and horizontal rows of elements are called .....

Question 44 :
The zigzag line in the periodic table separates ....... from .............

Question 46 :
The most significant contribution towards the development of periodic table was made by:

Question 49 :
Mendeleev arranged the elements in increasing order of their atomic masses and according to their physical properties.

Question 50 :
Which among the following is not an anomalous pair in Mendeleev's periodic table?

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