CLASS XII A, Mother Divine Sr. Sec. Public. School (Rohini), regarding his project titled. “Determination of the Contents of Cold Drinks”. Teacher's Signature. Explore Chemistry Investigatory Projects Experiments Class 12 CBSE, Chemistry Projects, Organic Science Fair Projects, Expo Models. Chemistry Project Report| Chemistry NEW Topics| CBSE School Chemistry Ideas, Chemistry Project experiments, Projects on Chemistry, Class IX, X, XI & XII .
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Chemistry Project 12th - Download as Word Doc .doc /.docx), PDF File .pdf), Text Foaming Capacity of Soaps investigatory projects chemistry class 12 cbse . 12th Chemistry Project - Free download as Word Doc .doc), PDF File .pdf), Text File .txt) or read CHEMISTRY INVESTIGATORY PROJECT of Class XII. CBSE Class 12 Chemistry Project, CBSE Sample Paper, Worksheets, NCERT Solutions for Class 12 Chemistry free download in pdf for questions of all.
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Embeds 0 No embeds. No notes for slide. Chemistry Investigatory Project Class 12 1. Signature of external examiner Signature of chemistry teacher 3. Primarily I would thank god for being able to complete this project with success. Then I would like to thank my principal Mr.
Babu and Chemistry teacher Mr. Sreedhar, whose valuable guidance has been the ones that helped me patch this project and make it full proof success his suggestions and his instructions has served as the major contributor towards the completion of the project.
Then I would like to thank my parents and friends who have helped me with their valuable suggestions and guidance has been helpful in various phases of the completion of the project. Last but not the least I would like to thank my classmates who have helped me a lot.
INDEX 1. The volcanic ash and a pulverized brick additive that were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cament and cement. The most important use of cement is the production of mortar and concrete The bonding of natural or artificial aggregates to form a strong building material that is durable in the face of normal environment effects.
Portland cement is a basic ingredient of concrete, mortar and non speciality grout.
The most common use for portland cement is in the production of concrete. Concrete is a composite material consisting of aggregate gravel and sand , cement and water. As a construction material, concrete can be cast in almost any shape desired and once hardened, can become a structural load baering element. Portland cement may be gray or white. Portland cement 8. Construction of buildings using cement Cement used in construction is characterised as hydraulic or non-hydraulic.
Hydraulic cements eg. The chemical reaction that results when the anhydrous cement powder is mixed with water produces hydrates that are not water-soluble. Non- hydraulic cements eg. Lime and gypsum plaster must be kept dry in order to retain their strength. For example, Sea sand obtained from sea contains unwanted salts and retards setting of cement and is not suitable for making mortar. On the other hand, Pit sand is obtained from pits in the soil and the River sand obtained from riverbed is considered excellent for preparing mortar and concrete.
When a cement paste in the ratio 1: It acquires a nearly full strength in 28 days. Prepare mixtures of various compositions as given in Observation table.
Take each of the given mixtures in different beakers and prepare their pastes by adding minimum amount of water 3. Take nine cases of empty match boxes and mark them from 1 to 9. Fill the three cases with the paste of each composition.
Spray water from time to time over the paste ,so that they remain moist all the time. After three days, take out one slab of each composition and test their strengths.
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I'm not going to leave this video up for long, so check it out now before I take it down! Show More. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Chemistry project for Class 12 1. Department of Chemistry Kendriya Vidyalaya Khagaria. The report is found worthy of acceptance as final project report for the subject Chemistry of Class XII.
He has prepared the report under my guidance. Gupta Sir for guiding me immensely through the course of the project.