which of the following halides has maximum
Which of the following halides has maximum melting point:
(1) NaCl
(2) NaBr
(3) Nal
(4) NaF
Ans: NaF
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the half-life of an isotope of an element is 5 days the mass of a 10 gram sample of this isotope remaining after 20 days isa 0312 gramsb 0625 gramsc
among the bonds formed by a chlorine atom with atoms of hydrogen chlorine sodium and carbon the strongest bond is formed between 1 h- cl
which of the following is least soluble1 bef2
the idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated bya thompsonb
which of the following halides has maximum melting point1 nacl 2
the high melting point and insolubility in organic solvents of sulphanilic acid are due to its structure1 simple
alpha particles are nuclei ofa hydrogenb heliumc oxygend nitrogenansalpha particles are nuclei of
out of the following which compound will have electrovalent bonding 1
a ball falling vertically from rest for 3 seconds travels very nearlya 147 metersb 294 metersc 441 metersd 882 metersansa ball falling vertically
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