Case Study and Passage Based Questions for Class 10 Science Chapter 5 Periodic Classification of Elements

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Home CBSE Class 10 Science Case Study Questions for Class 10 Science Case Study and Passage Based Questions for Class 10 Science Chapter 5 Periodic Classification of Elements

In CBSE Class 10 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Here, we have provided case based/passage based questions for Class 10 Science Chapter 5 Periodic Classification of Elements.

Case Study/Passage Based Questions

Question 1:

Group VII A elements are strong non-metals because they can easily accept an electron to form an anion whereas group 1 A element are strong metals because they can very easily lose one electron to form cation.

Metals have the tendency to lose their valence electrons and form positive ions, so metallic character is related to the ionisation potential. Elements having low ionisation potential, lose electrons easily. Thus, metallic character generally decreases across a period and increases down a group.

(i) The non metallic character on moving along a period –
(a) increases
(b) decreases
(c) depends on the period
(d) remains the same

Answer Answer: (a)

(ii) Group 1 and group 2 elements are considered as strong metals because
(a) they have incomplete octet.
(b) they can easily gain electrons.
(c) they can easily lose electrons.
(d) they form anions.

Answer Answer: (c)

(iii) Which of the following is the correct decreasing order of metallic character?
(a) Ca > Sc > Ti > K
(b) K > Ca > Sc > Ti
(c) K > Sc > Ca > Ti
(d) Ti > Sc > Ca > K

Answer Answer: (b) On moving along a period metallic character decreases.

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