Periodic Classification Of Elements


10 Questions MCQ Test Important Questions Chemistry (Board Preparation) | Periodic Classification Of Elements


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Attempt Periodic Classification Of Elements | 10 questions in 20 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study Important Questions Chemistry (Board Preparation) for Class 10 Exam | Download free PDF with solutions
QUESTION: 1

 Newlands relation is called

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QUESTION: 2

Upto which element, the Law of Octaves was found applicable?

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QUESTION: 3

In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic Table later?

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QUESTION: 4

At the time of Mendeleev, the number of elements known was

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QUESTION: 5

The properties of eka-aluminium predicted by Mendeleev are the same as the properties of later discovered element:

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QUESTION: 6

Element ‘X’ forms a chloride with the formula XCl2, which is a solid with high melting point. X would most likely be in the same group of the periodic table as:

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QUESTION: 7

Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is

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QUESTION: 8

Which one of the following statements is not correct about the trends in the properties of the elements of a period on going from left to right?

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*Multiple options can be correct
QUESTION: 9

The elements A, B and C belong to groups 1, 14 and 17 respectively of the Periodic Table. Which two elements will form ionic compounds?

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QUESTION: 10

An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound.

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