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copper reacts with oxygen to form two oxide X and Y .On analysis 1.535g of X yielded 1.365g of copper and 1.450g of Y yielded 1.160g of copper. [I] determine the chemical formula
Q. What is the use of Gallium? Gallium is mainly used in semiconductor technology. It is used for doping other semiconductor and in solid state devices such as transistors.
3d 10 4s0 electronic configuration exhibits by; (1) Zn ++ (2) Cu ++ (3) Cd ++ (4) Hg ++
A substance that has a molecular structure built up chiefly or completely from a large number of similar units bonded together.
The total number of unpaired electrons in d- orbital's of atoms of element of atomic number 29 is: (1) 10 (2) 1 (3) 0 (4)5 Ans: 0
Q. Llimitations of werners theory? There were inherent limitations with such a simple approach. For example, the following experimental facts cannot be explained on the basis o
Physical properties of Acetophenone - Aldehydes and Ketones a. Acetophenone is a colourless crystalline solid with melting point 20°C and boiling point 202°C. b. Acetophenon
The high melting point and insolubility in organic solvents of sulphanilic acid are due to its ...... structure: (1) Simple ionic (2) Bipolar
Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,
90ml of an unknown concentrated chlorine was diluted with 2250l of water.The dilution now is 0.08mg/l. what is the initial concentration of the chlorine before dilution?
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