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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 of protons
(2) α -rays
(3) A beam of neutrons
(4) X-rays
Ans: A beam of neutrons
state the purification processes commonly used by organic chemists to separate different components from a mixture
Rutherford's alpha particle scattering experiment eventually led to the conclusion that: (1)The point of impact with matter can be precisely determined (2)Electrons occupy s
Substitution reactions Replacement of a molecule or set/group of the substrate by any another type of atom or group is termed as substitution reactions. Examples :
WHAT DOES DSA STAND FOR
all about isotopes
how alkenes oxidise with potassium
Q. Can you describe Cream Foams? Cream, with a fat content of at least 30 per cent, can be beaten to form foam. However, it is observed that a cream with 36 per cent fat can be
give exsample on how undesired wavelengths are blocked and desired one is trans mitted
Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and
observations?????..
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