which of the following is least soluble1
Which of the following is least soluble:
(1) BeF2
(2) NaBr
(3) CaF2
(4) MgF
Ans: NaBr
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an x-ray photon collides with a free electron and the photon is scattered during this collision there is conservation of a momentum but not energyb
normal 0 false false false en-in x-none x-none
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
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