The chalcogen having same number of electrons both in penultimate and antipenultimate shells isA. OB. SC. SeD. Te

The chalcogen having same number of electrons both in penultimate and

1.	The chalcogen having same number of electrons both in penultimate and antipenultimate shells isA. OB. SC. SeD. Te
Answer» Correct Answer - D

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Strongest reducing agent of the following isA. `H_(2)O`B. `H_(2)S`C. `H_(2)Se`D. `H_(2)Te`
Which of the following order represents correctly according to the property given?A. `H_(2)O ltH_(2)S ltH_(2)Se ltH_(2)Te` order of acidic strengthB. `H_(2)O gt H_(2)S gt H_(2)Se gt H_(2)Te` : polarity of the moleculeC. `H_(2)O gt H_(2)S gt H_(2)Te` : reducing natureD. `H_(2)O gt H_(2)S gt H_(2)Se gt H_(2)Te` : thermal stability
Gas X and Gas Y in solution state react to give a turns substance Z. X has unpleasant odour and turns lead acetate paper black. In the first reaction X is oxidised and Y is reduced. Y on further oxidation with `O_(3)` gives a compound W X and Y are:A. `SO_(2) and SO_(3)`B. `H_(2)S and SO_(2)`C. `CO_(2) and SO_(2)`D. `SO_(2) and O_(3)`
Which of the following turns lead acetate paper black?A. `SO_(2)`B. `SO_(3)`C. `H_(2)S`D. `H_(2)SO_(4)`
Gas X and Gas Y in solution state react to give a turns substance Z. X has unpleasant odour and turns lead acetate paper black. In the first reaction X is oxidised and Y is reduced. Y on further oxidation with `O_(3)` gives a compound W In which of the following reactions also the above turbidity (Z) is seenA. `K_(2)Cr_(2)O_(7)+Na_(2)SO_(3) overset"acidic medium"rarr`B. `Na_(2)S_(2)O_(3)+Cl_(2)+H_(2)Orarr`C. `SCl_(4)+H_(2)Orarr`D. `SO_(2)+H_(2)O_(2)rarr`
`SO_(2)` is a strong reducing agent however it also act as an oxidising agent Which of the following reactions shows its oxidising nature ?A. Bleaching flower petalsB. Decolourising acidified `KMnO_(4)` solutionC. Reaction with `H_(2)S` to give colloidal sulphurD. Turning acidified dichromate paper green
How many of the following species can act as both bleaching agent and reducing agent `O_(3),H_(2)O_(2),SO_(2),HCl,SO_(3)`
When an inorganic compound reacts with `SO_2` in aqueous medium produces `(A). (A)` on reaction with `Na_2 CO_3` gives the compound `(B)` which with sulphur gives a substance `(c)` used in photography. The compound `(c)` is.A. `Na_(2)S_(2)O_(3)`B. `Na_(2)SO_(4)`C. `Na_(2)S`D. `Na_(2)SO_(3)`
Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.A. Statement-I and Statement-II are correct and Statement-II is correct explanation of Statement-IB. Statement-I and Statement-II are correct and Statement-II is not correct explanation of Statement-IC. Statement-I is correct and Statement-II is not correctD. Statement-I is not correct and Statement-II is correct
`SO_(2)` gas used as a bleaching agent. Its bleaching action is :A. temporary and due to its oxidising natureB. temporary and due to its reducing natureC. permanent and due to its oxidising natureD. permenent and due to its reducing nature

The chalcogen having same number of electrons both in penultimate and antipenultimate shells isA. OB. SC. SeD. Te

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