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When beryllium is bombarded with α -particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are: (1) A beam
Platinichloride Method for Bases - Chemical Methods Organic bases combine along with chloroplatinic acid, H 2 PtCl 6 to make insoluble platinichlorides, that on ignition, opt
Although cholrine is electron withdrawing group.yet it is ortho nd para directing in electrophilic aromatic substitution reactants.why? Solution) Halogens are an exception of th
find H^+ concentration if Ph=4.90
A medicine dropper is an instrument used to calculate small amount of liquids, usually in milligrams.
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
Which of the following has the maximum number of unpaired electrons: (1) Mg 2+ (2) Ti 3+ (3) V 3+ (
if the ozone layer distroyed then earth cool why
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
A 100 gal tank contains 10 lb of water. The tank is filled by two inlet streams, one of pure water and one of pure ethanol. The flow rate of both streams is 10 gal/min. Calculate t
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