Question

Fusion of MnO₂ with KOH in presence of O₂ produces a salt W. Alkaline solution of W upon electrolytic
oxidation yields another salt X. The manganese containing ions present in W and X, respectively, are Y and
Z. Correct statement(s) is(are)
(A) In aqueous acidic solution, Y undergoes disproportionation reaction to give Z and MnO₂
(B) In both Y and Z, ????-bonding occurs between p-orbitals of oxygen and d-orbitals of manganese
(C) Y is diamagnetic in nature while Z is paramagnetic
(D) Both Y and Z are coloured and have tetrahedral shape

Answer 1

Answer:

Activity:Complete the table showing the salinity of open and land-locked seas.L 529SK47Supply of freshwaterRiver water Snow waterEvaporation of waterRegionLatitudeSolar EnergyEquatorial0° to 15°HighTropical15° to 35°Temperate35° to 650 LowPolar65° to 90°RainfallPerennialSeasonalHighAverage salinity34%37%o33%31%lowampleRiver waterSnow waterAverage salinitySolar EnergyHighlowlow39%41%Landlocked SeaMediterranean SeaRed SeaBaltic SeaDead SeaCaspian SeaGreat Salt lakeLowlowle7%MediumVery lessVery less332%0155%220%medium