GASES Q.01: Select the most suitable answers from the given ones in each question: (i) Pressure remaining constant at which temperature the volume of a gas will become twice of what it is at 0oC: (a) 546oC (b) 200oC (c)…
BIOLOGICAL MOLECULES FILL IN THE BLANKS Q.01: Fill in the blanks: (i) The sum of all the chemical reactions taking place within a cell is called ________. (metabolism) (ii) _________ is the basic element of organic compounds. (Carbon) (iii) All…
INTRODUCTION FILL IN THE BLANKS Q.01: Fill in the blanks: (i) ________ is the study of organisms in relation to their environment. (Environmental biology) (ii) The study of organisms living in fresh water bodies like rivers, lakes etc. is called…
Here in this section, solved textbook exercises of Biology-11, pertaining to Punjab Textbook Boards syllabus are given. You can get exercise solutions by going into the relevant chapter given below: NOTE: Give your opinion and suggestions about this work so…
EXPERIMENTAL TECHNIQUES IN CHEMISTRY Q.01: Select the most suitable answers from the given ones in each question: (i) A filtration process could be very time consuming if it were not aided by a gentle suction which is developed: …
BASIC CONCEPTS Here is the complete solution to textbook exercise of chapter-01, Chemistry-11: Q.1: Select the most suitable answer from the given ones in each question. (i) Isotopes differ in: (a) properties which depend upon mass (b) arrangement of electrons…
Dear Students and Respected Teachers! These are physics-12 previous five year papers (2018-2023) for all Punjab & AJK educational boards. Annual 2020 exams could not be held on account of Covid-19, so papers for that year are not included among…
Dear Students and Respected Teachers! These are Biology-12 up-to-date papers of all Punjab & AJK boards. These are five year past papers (2018-2023) of annual exams under all the nine educational boards of Punjab and AJK board. Remember, 2020 papers…
Dear Students and Respected Teachers! These are previous board papers for Chemistry-12. These include past papers from 2018 to 2023 annual exams. Board papers for 2020 are not present among these because that year exams could not be conducted on…
Dear Students and Respected Teachers! These are physics-11 previous five year papers (2018-2023) for all Punjab & AJK educational boards. Annual 2020 exams could not be held on account of Covid-19, so papers for that year are not included among…