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1. Which of the following ions have noble gas configurations- Fe2+, Fe3+, Sc3+, Co3+?

a. Sc3+

b. Co3+ and Fe3+

c. Fe2+

d. None of the them

e. Fe3+

2. Rank the following from most polar to least polar: N2, HF, HCN, H2O

a. N2, HCN, H2O, HF

b. HF, H2O, HCN, N2

c. H2O, N2, HCN, HF

d. HF, HCN, N2, H¬2O

e. H¬2O, HF, HCN, N2

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Category:- Chemistry
Reference No.:- M91067609

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