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Q) Inside the sun four hydrogen nuclei combine to form a helium nucleus by which cycle?Ans) Proton-proton cycle.
It is a part of chemistry which deals with the organic compounds formed by carbon , hydrogen ,oxygen.
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
Q. What is Percent error? Quantities measured throughout an experiment are called experimental values. The dissimilarity between an accepted value and an experimental value is
The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is: (1) Eight (2) Six (3) Three
which element has the highest oxidation state and why?
give best example of ammalgam eletrod
Selecting and Numbering the principal chain Selecting the principal chain : choose the longest continuous chain of carbon atoms consisting of the principal functional
How is ethane gas is preparec in the lab?
the equation of langmuir isotherm was derived on basis of
The number of electrons involved in the bond formation of N 2 molecule : (1) 2 (2) 4 (3) 6 (4) 10 Ans: 6
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