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The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10-13 A 1/3 cm Radius of atom is one A. If the mass number is 64, then the fraction of the atomic volume that is occupied by the nucleus is:
(1)1.0x 10-3
(2) 5.0x 10-5
(3) 2.5x 10-2
(4) 1.25x 10-13
Ans: 1.25x 10-13
To calculate the e.m.f of the cell when does the nelsons equation is use? Ans) The Nernst equation is useful to measure the e.m.f of the cell when the concentrations of solution
An electron has principal quantum number 3. The number of its (i) sub-shells and (ii) orbitals would be respectively: (1) 3 and 5 (2) 3 and 7 (3) 3 and 9
Q. Show the Chemical property of matter? A chemical property explains the ability of a substance to combine with or change into one or more other substances. For instance the
a) Write down the balanced reaction equation of the key reaction path. b) Which reactions can occur during further oxidation (except total oxidation) ? The us
COMPOUNDS A AND B CONTAIN COPPER AND SULPHUR.EACH CONTAINS 20% AND 33.33% EACH BY MASS OF SULPHUR RESPECTIVELY.FIND THE RATIO OF THE ELEMENTS USING THE THIRD LAW OF CHEMICAL COMBIN
how yield of ether is highest when the halide ion is displased from a primary rather than secondary or tertiary halide?
what is the significance of BR in ghee?
how to construct SHE
Maximum electrons in a d -orbital are: (1) 2 (2) 10 (3) 6 (4) 14 Ans: 10
The chemical reaction at one time the rate of forward and backward reaction becomes equal that state is known as Equilibrium state.
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