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When β -particles are sent through a tin metal foil, most of them go straight through the foil as : (1)β -particles are much heavier than electrons (2) β -particles are po
Q. Describe Subatomic Particles and the Nuclear Atom? One of the most significant results of Dalton's theory was that it generally persuaded scientists that atoms exist. As a r
why ionisation energy of Al is greater than Ga?
The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
what are the pysical propities of iodofrom
The charge on the atom containing 17 protons, 18 neutrons and 18 electrons is: (1) +1 (2) -2 (3) -1 (4)Zero Ans: -1
In any atom which sub-shell will have the highest energy in the following : (1) 3p (2) 3d (3) 4s (4) 3s Ans: 3d
Q. What is a trained sensory panel? A sensory panel is the panel of members of which are capable of giving high reliability of judgements, independent of psychological factors
you are provided with a monobasic acid , HX with a concentration in the range of 0.5moldm-3. You arerequired to plan and carry out an experiment to determine that exact concentrati
Ask question formaldehyde reacts with NH3 #Minimum 100 words accepted#
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