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Properties of Unsaturated halides (Halo-alkene) Halo-alkene is a colourless gas at room temperature. The boiling point of it is -13°C. The halogen atom in vinyl chloride is not
The surface area of the Pacific Ocean is 166000000000000m 2 . Write this quantity in scientific notation. To write the amount in scientific notation move the decimal point to after
Which is the correct relationship between wavelength and momentum of particles: (1) γ= h/ p (2) Π h/ p (3) p= h/ γ (4) h= p/ γ Ans: γ= h/ p
The nucleus of the element 21E^45 contains
In naturally occuring neon, the fracional abundance of various isotopes is as follows: 20Ne =0.9051; 21Ne = 0.0027; 22Ne = 0.0922. What is the atomic mass of neon?
What is the maximum number of electrons which can be accommodated in an atom in which the highest principal quantum number value is 4: (1) 10 (2) 18 (3) 32
Hydrogen Peroxide Hydrogen peroxide is the other important hydride of oxygen. The oldest method of its preparation is by the action of dilute sulphuric acid on barium peroxide
Q. Show Chemical properties of Thorium metal? You know that actinium and all the actinides are radioactive. Of these only uranium and thorium are extracted from ores, all other
what is perkin reaction?
Semisynthetic polymers These polymers are mainly derived from naturally taking place polymers by chemical changes. Since cellulose is naturally taking place polymers, cellulose
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