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Semisynthetic polymers
These polymers are mainly derived from naturally taking place polymers by chemical changes. Since cellulose is naturally taking place polymers, cellulose on acetylation along with respect to acetic anhydride in the existence of sulphuric acid makes cellulose diacetate polymers. It is utilized in building materials and thread such as films glasses etc. Vulcanized rubber is as well a type of semisynthetic polymers utilized in creating tyres etc. gun cotton that is cellulose nitrate required in making explosive.
Tritium is the isotope of: (1) Hydrogen (2) Oxygen (3) Carbon (4)Sulpher Ans: Hydrogen
thermodynamics help to be a good chemist
Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemica
The following cell is used for measuring the partial pressure of oxygen at 700 o C. (Pt) Cu 2 Cu 2 0 / 0.85 ZrO 2 - 0.l5 CaO / O 2 (Pt) Knowing that conduction through the
Indicate the nature of bonding in diamond: (1) Covalent (2) Ionic (3) Coordinate (4) Hydrogen Ans: Covalent
Question: (a) Explain the potential health risk which composting will pose to workers or to those located near a facility. (b) A number of concerns have been shown in regar
how H+ ions are formed
what is the advantages of electro chemical series
Q. What are the Chemical Properties of Ammonia? Ans. Combustion: Ammonia does not burn in air but will burn in pure oxygen to form nitrogen and water vapor. 4NH 3 (g) +
calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation
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