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Explain the statement "Water has bent geometry"
Water has bent geometry; that is, the H-O-H bond angle is approximately tetrahedral. Repulsion among the lone pairs and the bonds decreases this bond angle somewhat. (The actual bond angle is 104.5°.)
The number of electrons involved in the bond formation of N 2 molecule : (1) 2 (2) 4 (3) 6 (4) 10 Ans: 6
Environmental pollution caused by oxides and oxyacids f nitrogen and sulphur
TRANSITION ELEMENTS-MEANS?
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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
Q. Write short notes on fabrication of rubber objects. Sol. Fabrication of Rubber: in the row condition rubber is composed of molecules of great length and molecular weight.
Q. Objective of elements of group 16? You should be able to: • describe the occurrence, extraction and uses of the elements of Group 16, • describe the allotropic forms o
Types of rocket propellants: Depending on the physical state, propellants can be categorized as: a. Hybrid propellants b. Liquid propellants c. Solid propellants
Q. Define Alcoholic Acidity? Alcoholic acidity is defined as mg of H 2 SO 4 required for 100 g of the sample to have the same alcohol soluble acids. Grains or their milled
how yield of ether is highest when the halide ion is displased from a primary rather than secondary or tertiary halide?
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