R F has the le uot deny to he D is a stronger osializing Fi 1 which change espla

Question

R F has the le uot deny to he D is a stronger osializing Fi 1 which change esplains why the p urra of hakoors increase as ther molecular A The imenmolecular attraction daw temporarily dipoles increases B The gravitational attraction between molecules rcreases c The polarny ofthe bond within the molecule increases D The swength of the bond within the molecule increases metal mark) 3. Which propertnes of the alkali metals decrease going down grup A First ionization energy and reactivity B Melting point and atomic radias c Reactivity and electronegativity D First ionization energy and melting point 4. What happens when sodium is added to waver? L A gas is evolved Il The temperature of the waer mcreases Ill A clear, colourless solution is formed and II only B land ill only c ll and Ill only D II and Ill

Explanation / Answer

1)
oxidising agent nature follows:
F2 > Cl2 > Br2 > I2
A) is wrong
B) is wrong
C) is correct
D) is wrong

Answer: C

2)
This is due to dispersion force. It results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction.
Answer: A

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