611.Discuss the anamolous behaviour of fluorine among the halogens. Give reason also.
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612.Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionization enthalpy and electronegativity.
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Short Answer Type
613.Assign reasons for the following: Ammonia (NH3) has greater affinity for protons than phosphine (PH3).
333 Views
614.Assign reasons for the following: The negative value of electron gain enthalpy of fluorine is less than that of chlorine.
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615.Assign reasons for the following: SF6, is much less reactive than SF4.
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616.Assign reasons for the following: Of the noble gases only xenon is known to form well-established chemical compounds.
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Long Answer Type
617.
Discuss the favourable conditions for the manufacture of (i) ammonia by Haeber's process and (ii) sulphuric acid by contact process.
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618.
Draw the structures of the following: (i) PCl5(g) (ii) S8(g) (iii) ClF3(g).
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Short Answer Type
619.Complete the following chemical reaction equation: F2 + H2O → ________
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620.Complete the following chemical reaction equation: Ca3P2 + H2O → __________
Long Answer Type
Short Answer Type
