Chapter 5 Periodic Classification of Elements – Page 3 – HI MCQ!

A metal ‘M’ is in the first group of the Periodic Table. What will be the formula of its oxide?

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Lanthanides and actinides are also called ___________?

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

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An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?

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Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?

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The element which has least tendency to lose electron is?

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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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Pick out the chemically most reactive elements from the given triads. Li, Na, K F, Cl, Br?

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An element X combines with oxygen to form an oxide XO. This oxide is electrically con¬ducting. Write the formula of the compound formed when X reacts with chlorine?

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An atom of an element has the electronic confi-guration 2,8,2. To which group does it belong?

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