Periodic Classification Of Elements - Class 10 MCQ
10 Questions MCQ Test - Periodic Classification Of Elements
Upto which element, the Law of Octaves was found applicable?
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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?
At the time of Mendeleev, the number of elements known was
The properties of eka-aluminium predicted by Mendeleev are the same as the properties of later discovered element:
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:
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
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?
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?
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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