p-Block Elements PYQs Set 14 (PDF)

Set 14 of 14 · Questions 391-400 of 400

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Mere Teacher · Previous Year Questions NEET Chemistry · p-Block Elements · Set 14 (Q391-400)
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391. $Number of Cl=0 bonds in chlorous acid, chloric acid and perchloric acid respectively are:$ (1) $3,1 and 1$ (2) $4,1 and 0$ (3) $1,1 and 3$ (4) $1,2 and 3$ 392. $Consider the following reaction Here, X, Y and Z respectively, are$ (1) $X e F_{2}, X e F_{6}, X e F_{4}$ (2) $X e F_{2}, X e F_{4}, X e F_{6}$ (3) $X e F_{4}, X e F_{2}, X e F_{6}$ (4) $X e F_{6}, X e F_{4}, X e F_{2}$ 393. $On the surface of polar stratospheric clouds, hydrolysis of chlorine nitrate gives A and B while its reaction with HC1 produces B and C. A, B and C are, respectively$ (1) $HOC1, H N O_{3}, C 1_{2}$ (2) $C 1_{2}, H N O_{3}, HOC1$ (3) $H C 1 O_{2}, H N O_{2}, HOC1$ (4) $HOC1, H N O_{2}, C 1_{2} O$ 394. $P_{2} O_{5} is heated with water to give$ (1) $hypophosphorous acid$ (2) $phosphorous acid$ (3) $hypophosphoric acid$ (4) $orthophosphoric acid.$ 395. $A chloride salt solution acidified with dil. H N O_{3} gives a curdy white precipitate, [A], on addition of A g N O_{3} . [A] on treatment with N H_{4} OH gives a clear solution, B.$ (1) $H[A g C l_{3}] & [Ag (N H_{3})_{2}]Cl$ (2) $H[A g C l_{3}] & (N H_{4})[Ag (O H)_{2}]$ (3) $AgCl & [Ag (N H_{3})_{2}]Cl$ (4) $AgCl & (N H_{4})[A_{g} (O H)_{2}]$ 396. $Sugarcane on reaction with nitric acid gives$ (1) $C O_{2} and S O_{2}$ (2) $(C O O H)$ (3) $2 H C O O H (two moles)$ (4) $no reaction.$ 397. $In which pair of ions both the species contain S — S bond?$ (1) $S_{4} O_{6}^{2 -}, S_{2} O_{3}^{2 -}$ (2) $S_{2} O_{7}^{2 -}, S_{2} O_{8}^{2 -}$ (3) $S_{4} O_{6}^{2 -}, S_{2} O_{7}^{2 -}$ (4) $S_{2} O_{7}^{2 -}, S_{2} O_{3}^{2 -}$ 398. $Xenon hexafluoride on partial hydrolysis produces compounds 'X' and 'Y'. Compounds 'X' and 'Y' and the oxidation state of Xe are respectively :$ (1) $X e O F_{4} (+6) and X e O_{3} (+6)$ (2) $X e O_{2} (+4) and X e O_{3} (+6)$ (3) $X e O F_{4} (+6) and X e O_{2} F_{2} (+6)$ (4) $X e O_{2} F_{2} (+6) and X e O_{2} (+4)$ 399. $The pair that contains two P - H bonds in each of the oxoacids is:$ (1) $H_{4} P_{2} O_{5} and H_{4} P_{2} O_{6}$ (2) $H_{3} PO_{2} and H_{4} P_{2} O_{5}$ (3) $H_{3} PO_{3} and H_{3} PO_{2}$ (4) $H_{4} P_{2} O_{5} and H_{3} PO_{3}$ 400. $The number of S = O bonds present in sulphurous acid, peroxodisulphuric acid and pyrosulphuric acid, respectively are :$ (1) $2, 3 and 4$ (2) $1, 4 and 3$ (3) $2, 4 and 3$ (4) $1, 4 and 4$