Skip to main content

Notes On Gaseous State (BSc and Integrated Standard For all Concerned Entrance Examination)

 Notes On Gaseous State      This page provides you all details about the gaseous state of BSc standard. Concerned problems will be solved at the end of each concept. Continue till the end to find the easiest explanation of every concept you need in this regard . Postulates of Kinetic Theory of Gases: 1. All gas consist of a very large number of minute particles, called molecules.  2. The gas molecules are extremely small in size and are separated by large distance. The actual volume of the gas molecules is thus negligible as compared to the total volume occupied by the gas.  3. The pressure exerted by the gas is due to the bombardment of the molecules on the walls of the vessel.  4. The gas molecules collide with one another and also with the walls of the vessels. These collisions are perfectly elastic and there is no loss of energy during these collisions.  5. The distance between the gas molecules are very large. Thus, there is no effective force of attraction or r

Health Issues due to Chemicals sprayed over and into fruits and how to get rid of them

 Chemicals in fruits, Health Issues and how to get rid of them.


    As we all know fruits are one of most important part of the human diet, fresh, testy and healthy fruits attract special attention. Human in general give importance to the colour of the fruits in the market (if color looks good then the fruits are OK). Many of us are not aware of the chemicals used for colouring and adding test to fruits. Some of them have less effect tot human health while some others have severe health consequences. This post elaborates chemicals of these kind and suggests possible methods to get rid of these chemicals.
    


    For your clarification, no fruits are left chemically untouched, hence at least wash fruits several times before you eat.




    Chemicals used to ripen banana: 

    The acetylene gas produced from hydrolysis of calcium carbide is used next to ethylene to ripen bananas. This calcium carbide is not safe as it may contain traces of arsenic and phosphorus hydride like much toxic dangerous chemicals which can cause vomiting, diarrhoea, burning sensation in chest, headache, vertigo, dizziness  like complications. 




    Ethephon is another ethylene producing chemicals (used to ripen a large variety of fruits including banana, apples, tomatoes, mangoes, guava etc.) which has also indicated severe health effects like inhibition of growth of Streptomyces and accordingly inhibition of antibiotic production.
Hence it is recommended to carefully peel out the banana while eating.

    Fruit Waxing:

    The primary reason of waxing fruits is to prevent water loss, to avoid getting spoiled and to achieve shiny and glazy look. Almost all kind of fruits are waxed. Natural wax on fruits negligibly cause any health effect cause they can be washed away by general washing. 



    But other form of waxing and artificial glazing may cause severe health effects. So we must think of alternatives available and methods to get rid of these chemicals.
1. Wash fruits with water for long before eating.
2.  You should eat pealed apple.
3. If possible, choose local banana over those available in market.
4. Don't go for super shining fruits rather choose healthy fruits.
5. Buy fruits from farms before spraying poison.
    Government officials in the corresponding department must be responsible for not punishing the vendors using chemicals for ripening of fruits which are poison or clearly the carcinogen. 
Authority responsible for food safety and security are:
FSSAI (Food Safety and Standard Authority of India)
FCI (Food Corporation of India)


Thank you for reading


Reference:
Banana ripening by acetylene
https://www.hindawi.com/journals/ijfs/2019/2520179/
Image Credit:
Banana:
Evan-Amos, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons
Ethephon Molecule:
By Edgar181 - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2085501
Different Colours of shellac:
By Nuberger13 at en.wikipedia - I created this work entirely by myself., Public Domain, https://commons.wikimedia.org/w/index.php?curid=13477833
Carnabua:
By Simon A. Eugster - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=7549021
    

Popular posts from this blog

Ethics and Values for Semester - I, Books, Syllabus, Important Questions and Answers

 Ethics and Values for Semester - I, Books,  Syllabus, Important Questions and Answers      Recently Odisha Universities have introduced a new course named "Ethics and Values" under AECC (Ability enhancement compulsory courses) for all streams (Arts/ Science/ Commerce). Being very new to the syllabus students are confused how to cover it and how to write the answers. Thus this post is for all of them who want to score well in this subject. This post will provide you all important question and answer related to this subject. Also this will provide you the best books to study and score good. Objectives and learning goals of the course: 1. To develop good human being and responsible citizensF, 2. To develop capability to choose between right and wrong which leads to correct behaviour. 3. To create a positive attitude and to develop healthy work culture.      Before we proceed let us analyse the question pattern: Questions carrying 1 mark + 2 mark + 5 mark      Similarly

Notes on Thermodynamics (Intermediate and BSc)

 Notes on Thermodynamics      A chapter in chemistry can be ranked according to its depth and complexity. Chemical thermodynamics can be ranked to the top most position in this concern. Hence it is almost essential to have either a very good book or very best notes to be able to get the concept and solve the problems and questions answers . You can also have notes on   Periodic table ,  Gaseous state  for BSc  ,  Phase rule ,  Industrial chemicals and environment , and  Solid state , Chemical equilibrium , .     This post is dedicated to all chemistry fans who enjoy reading wonderful explanations of chemistry. Bellow you will find best notes on Thermodynamics. Follow our YouTube Channel    Soul of Chemistry , to further strengthen your concept. The First Law of Thermodynamics      Thermodynamics is concerned with the heat motion (flow). In general, it deals with the relation between heat and mechanical energy. Mechanical energy relates to either kinetic and/or potential energy.  

Previous Year 1st Semester Chemistry Honours Questions and Solutions

Previous Year University  Chemistry 1 st Semester  Honours   Questions and Solutions      This website will provide you with university semester questions and solutions. Accordingly prepare your examination well.  Getting previous year question papers and solution is a boost to your confidence and keeps you relaxed in the examination hall. But it is not easy to collect all the question papers of all the subjects at a time easily. Also this post will provide you the questions from various universities.   Click on the links below to get Questions and Solutions: (At the end you will get most probable questions) AECC and GE   (Here you can find the ability enhancement Course (Odia) and GE Physics Questions) Exam Questions   (Previous year question papers in various examinations) CC - Honours   (The Chemistry Honours Questions CC I & II) Sample Chemistry Major  Questions CC - I Chemistry Major No. 1. 1 X 8 = 8 a. The orbital with n= 1, l = 0 is _______ b. What is orthogonality of two w