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Q. What are the Physical Properties of Nitric Acid? Ans. Nitric acid (HNO 3 ) may be prepared by heating sodium nitrate with sulfuric acid: NaNO 3 + H 2 SO 4 --> HNO
Q. Quantum Mechanical Model of the Atom? Ans: Using quantum mechanics, scientists realized that the exact location of an electron could not be determined. Instead, only the p
application of electromeric effect
Whereas a pure molecular species has a definite stoichiometry, this is not often true for solids. Defects in crystals will include vacancies (atoms missing from their expected site
1(a). In these reactions, I2 (in the iodine solution) has what oxidation number? 1(b). The iodine starch reaction that turns purple depends on iodine being in the I- state. Was
Two element have electronegativity of 1.2 and 3.0. Bond formed between them would be: (1) Ionic (2) Polar covalent ( 3) Co-ordinate (4) Metallic A ns: Ionic
Synthetic Detergents - Oils and Fats The synthetic Syndets or detergents are substitutes of soaps. They comprise cleansing power as good or better as compared to ordinary soaps
Energy of electron of hydrogen atom in second Bohr orbit is: (1)-5.44x10 -19 j (2)- 5.44x10 -19 kj (3)-5.44x10 -19 cal
Starch and its derivatives Starch is a white amorphous substance along with no taste or smell. While heated to a temperature among 200-250 o C it changes into dextrin. At large
Cereals Cereals or grains are the seeds of grasses and include the many species of wheat, rice, maize or corn, jowar, barley, ragi, bajra, rye and oats. Cereals account for
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