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Electrolytes are compound containing: (1) Electrovalent bond (2) Covalent bond (3) Coordinate bond (4) Hydrogen bond Ans: Electrovalent bond
Six protons are found in the nucleus of : (1) Boron (2) Lithium (3) Carbon (4 )Helium Ans: Carbon
All electrons on the 4p sub-shell must be characterized by the quantum number(s): (1) n=4, m= 0, s= ± 1/2 (2) l=1 (3) l=0, s= ± 1/2
concentration cell with out transference +salt bridge
how does chemical bonding takes place?
what is the balanced equation of the burning of an unknown hydrocarbon, C4H9 in air
The energy of an electron in orbit of hydrogen atom is : (1) 13.6/n 4 x eV (2) 13.6/n 3 xeV (3) 13.6/n 2 xeV (4)13.6/nx eV Ans:
why ionisation energy of aluminium is greater then Ga?
Determine the alcoholic acidity of the given sample of flour. After undertaking this activity, you will be able to: • assess the acidity the given sample of flour, and •
calculate M of 3m solution of NaCl of density of 1.05 gm/ml
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