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The covalent bond produced by the unequal sharing of electrons among the two atoms is known as polar covalent bond.
Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
why are lanthanides and actinides called innertransition metals
Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light: (1) 2.73 x 10- 24 (2) 2.42 x 10 -10 (3) 242.2x 10- 10
Common or trivial names of some organic compounds Compound Common name Compound Common name CH 4 Methane
Silver mirror test and Fehling's solution test - Glucose (a) Silver mirror test : A combination of glucose and ammonical silver nitrate is warmed in a test tube. Presence of si
Advantages of radiometric titration
K c is the equilibrium constants when the concentrations are expressed in moles/litre K c = Product of concentrate ions of products / product of concentrate ions of reactants
a metal forms 2 oxides. the higher oxide has 80% metal. 0.72g of lower oxide gave 0.8g of higher oxide when oxidised. show that law of multiple proportion is valid?
Hydrazine, N2H4, reacts exothermically with hydrogen peroxide, H2O2, to produce gaseous nitric acid and water vapour. What would a balanced equation for this reaction be?
diagonal relationship between beryllium and aluminum
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