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JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

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The correct order of acidic nature of oxides is in the order
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Correct option: B
N2O<NO<N2O3<NO2<N2O5{N_2}O < \mathrm{ }NO < \mathrm{ }{N_2}{O_3} < \mathrm{ }N{O_2} < {N_2}{O_5}
Option B (N2O<NO<N2O3<NO2<N2O5{N_2}O < \mathrm{ }NO < \mathrm{ }{N_2}{O_3} < \mathrm{ }N{O_2} < {N_2}{O_5}) is correct because the acidic nature of oxides increases with the oxidation number of the central atom.

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The gas used for inflating the tyres of aeroplanes is: Which of the following is correct stability order of oxides of 17th 17^{\text {th }} group elements is: Assertion: Ozone is a powerful oxidising agent in comparison to O2{O}_2.

Reason: Ozone is diamagnetic but O2{O}_2 is paramagnetic. Which of the following is kept in water? CN−\mathrm{C}{\mathrm{N}^ - } ion and N2{\mathrm{N}_2} are isoelectronic but in contrast to CN−,  N2\mathrm{C}{\mathrm{N}^ - },\mathrm{\;}{\mathrm{N}_2} is chemically inert because of: Consider the following statements

(i) Reaction 2Fe3++SO2+2H2O→2Fe2++SO42−+4H+2 {Fe}^{3+}+{SO}_2+2 {H}_2 {O} \rightarrow 2 {Fe}^{2+}+{SO}_4^{2-}+4 {H}^{+} shows reducing character of sulphur dioxide

(ii) H2 S2O8{H}_2 {~S}_2 {O}_8 contains four S=O{S}={O}, two S−OH{S}-{OH} and one O−{O}- O{O} bond

(iii) NH3{NH}_3 gas can be dried effectively by using conc. H2SO4{H}_2 {SO}_4.

(iv) One of the major use of H2SO4{H}_2 {SO}_4 is in the manufacture of fertilizers.

Which of the following is the correct code for the statements above?
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