Free download the Book Chemistry is for Intermediate class 11th. This is a book by Punjab Curriculum and Textbook Board, Lahore and published by Zareena Shahab Printers, Lahore.
The authors of the book are
- Prof. Dr. Ali Mohammad
- Prof. Dr Shams-ul-Haq Qureshi
- Prof. Choudhry Sana Ullah
- Prof. Dr. Mohammad Lateef Khan
- Prof. Dr. Abid Zia
- Prof. Dr. Akbar Hussain
Chemistry is a big part of your regular life. You locate chemistry in each day life in the meals you devour, the air you breathe, cleansing chemical substances, your feelings and literally every object you can see or touch. Here is a look at 10 examples of ordinary chemistry. Some commonplace chemistry can be apparent, but others may surprise you.
Elements within the Human body
Your frame is made from chemical compounds, which might be combinations of elements. while you in all likelihood recognize your frame is in general water, which is hydrogen and oxygen, are you able to call the alternative factors that make you, you?
Chemistry of love
The feelings that you feel are an end result of chemical messengers, broadly speaking neurotransmitters. Love, jealousy, envy, infatuation, and infidelity all percentage a foundation in chemistry.
How Sunscreen Works?
Sunscreen combines natural and inorganic chemical compounds to filter the light from the solar in order that less of it reaches the deeper layers of your skin. The reflective debris in sunscreen normally encompass zinc oxide or titanium oxide.
Meals are cooked faster in a strain cooker?
A stress cooker has a greater elaborated lid that seals the pot completely. When we warmness water it boils and the steam cannot escape, so it remains inner and starts off evolved to build up strain. Beneath strain, cooking temperatures raise a lot better than underneath normal conditions, consequently the food is cooked an awful lot quicker.
How cleaning soap cleans?
Cleaning soap is fashioned by using molecules with a ‘head’ which likes water (hydrophilic) and a long chain that hates it (hydrophobic). Then when soap is delivered to the water, the long hydrophobic chains of its molecules join the oil particles, whilst the hydrophilic heads cross into the water. An emulsion of oil in water is then formed, because of this the oil debris come to be suspended in the water and are liberated from the fabric. With the rinsing, the emulsion is taken away.
Veggies are colored
Many veggies and culmination are strongly colored because they include a unique sort of chemical compound named carotenoids. These compounds have a place called chromosphere, which absorbs and offers off unique wavelengths of mild, producing the color that we then perceive.