Periodic Classification of Elements and Periodicity
In this post, I am sharing the Class 12 Chemistry Notes Chapter 1 Solved Exercise PDF for the students of FSC 2nd Year. The name of this chapter is Periodic Classification of Elements and Periodicity. Students can download the 12th Chemistry Chapter 1 Solved Exercise Notes in PDF format on their laptops or mobile. These Chemistry Notes are for the FSC Part 2 students of all boards working under the Punjab Board like Gujranwala Board, Lahore Board, Faisalabad Board, Multan Board, Rawalpindi Board, Sargodha Board, DG Khan Board, and Sahiwal Board. Here are the complete FSC 2nd Year Chemistry Notes PDF of all chapters.
Solved MCQs & Short Questions
How the classification of elements in different blocks helps in understanding their chemistry?
This Classificatinis based upon the valence orbital of the element involved in chemical bonding. So this classification is quite useful in understanding the chemical properties of elements especially the concept of valency as oxidation state.
Why the second value of the electron affinity of an element is usually shown wiht a positive sign?
When a second electron is added to a uni-negative ion, the incoming electron is repelled by the already present negative charge and energy is absorbed in this process so, it is usually shown with a positive sign.
Why metallic character increases from top bottom in a group of metals?
Metallic character inceases from top to bottom in groups due to incease in size of atom and ease to remove electrons.
Extra Multiple Choice Questions
The number of shells in an element reflects its:
a) Period number
b) Group number
c) Both
d) None.
The number of electrons in valence shell of an element reflects its:
a) Period number
b) Group number
c) Both
d) None
Generally metals from oxides:
a) Acidic
b) Basic
c) Amphoteric
d) None
Variable valency is shown by:
a) Group lA
b) Group llA
c) Group VllA
d) Group lB
How to Download?
FSC students can download these 2nd year Chemistry Notes of Chapter 1 in PDF format and also can read them online. These notes contain Solved MCQs, short questions with answers and some extra multiple choice questions for practice. Just click on the red “Download Button” to download them. Please don’t forget to subscribe to our YouTube channel ilmihub.
