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In the transition of Zn atoms to Zn ++ ions there is a decrease in the: (1) Number of valency electrons (2) Atomic weight (3) Atomic number (4) Equivalent weight A
The formal charge on the hydrogens are The formal charge on all the hydrogens is 0. For the other atoms: (a) Nitrogen has a complete octet and a formal charge of 0. (b) B
chemical properties with reactions of alkali metals
Physical properties of Trihydric alcohols (a) Trihydric alcohol is an odourless, viscous, colourless and hygroscopic liquid. (b) Trihydric alcohol has high boiling point tha
Iso-electronic species is: (1) F - ,O -2 (2) F - , O (3) F - , O + (4) F - , O +2 Ans: F - ,O- 2
What is Thermal breakdown It is because of the attainment of an excessive temperature in dielectric. If heat dissipated is less than heat generated, there is a pr
what is meant by abnormal molecular mass of solute ? discuss the factors which bring abnormality in the experimentally determined molecular masses of solutes using colligative prop
Q. Effect of addition of ingredients on egg foam stability? The addition of other ingredients also influences stability. Sometimes salt is added to an egg white foam for flavou
Uses of Perfluorocarbons Perfluorocarbons are good electrical insulators. These have several important uses like: (a) Perfluorocarbons are used as surface coatings, lubrican
characteristics of group 13 elements
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