s-Block Elements PYQs Set 20 (PDF)

Set 20 of 20 · Questions 571-573 of 573

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Mere Teacher · Previous Year Questions NEET Chemistry · s-Block Elements · Set 20 (Q571-573)
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571. $Which oxyacid of sulphur contains S - S single bond?$ (1) $Oleum$ (2) $Marshall's acid$ (3) $Dithionic acid$ (4) $Thiosulphuric acid$ 572. $The shape of XeF_{6} is$ (1) $square planar$ (2) $distorted octahedral$ (3) $square pyramidal$ (4) $pyramidal.$ 573. $Lithium nitrate on heating gives$ (1) $Li_{2} O + NO_{2}$ (2) $Li_{2} O + NO_{2} + O_{2}$ (3) $LiNO_{2} + O_{2}$ (4) $Li_{2} O_{2} + NO_{2} + O_{2}$