Find A, B and C in the following reactions : $$N{H}_3+A+C{O}_2\to (N{H}_4{)}_{2}C{O}_3$$ $$(N{H}_4{)}_{2}C{O}_3+H_{2}O+B\to N{H}_{4}HC{O}_3$$ $$N{H}_{4}HC{O}_3+NaCl\to N{H}_{4}Cl+C$$

On treating a compound with warm dil. H2SO4, gas X is evolved which turns K2Cr2O7 paper acidified with dil. H2SO4 to a green compound Y. X and Y respectively are :

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : In TlI3, isomorphous to CsI3, the metal is present in +1 oxidation state. Reason R : Tl metal has fourteen f electrons in its electronic configuration. In the light of the above statements, choose the most appropriate answer from the options given below :

Match List - I with List - II : List - I Industrial process List - II Application (a) Haber's process (i) $$HN{O}_3$$ synthesis (b) Ostwald's process (ii) Aluminium extraction (c) Contact process (iii) $$N{H}_3$$ synthesis (d) Hal-Heroult process (iv) $$H_{2}S{O}_4$$ synthesis Choose the correct answer from the options given below :

A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :

Match List - I with List - II : List - I Name of oxo acid List - II Oxidation state of 'P' (a) Hypophosphorous acid (i) +5 (b) Orthophosphoric acid (ii) +4 (c) Hypophosphoric acid (iii) +3 (d) Orthophosphorous acid (iv) +2 (v) +1 Choose the correct answer from the options given below :

The INCORRECT statement regarding the structure of C60 is :

The set that represents the pair of neutral oxides of nitrogen is :

Match List - I with List - II List - I (process) List - II (catalyst) (a) Deacron's process (i) ZSM-5 (b) Contact process (ii) $$CuC{l}_2$$ (c) Cracking of hydrocarbons (iii) Particles 'Ni' (d) Hydrogenation of vegetable oils (iv) $$V_2{O}_5$$ Choose the most appropriate answer from the options given below :

The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and phosphonic acid is :

The species given below that does NOT show disproportionation reaction is :

Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4 : 1 ratio) is :

Given below are the statements about diborane (a) Diborane is prepared by the oxidation of NaBH4 with I2 (b) Each boron atom is in sp2 hybridized state (c) Diborane has one bridged 3 centre-2-electron bond (d) Diborane is a planar molecule The option with correct statements is :

Which one of the following group-15 hydride is the strongest reducing agent?

Which one of the following compounds of Group-14 elements is not known?

The product obtained from the electrolytic oxidation of acidified sulphate solutions, is :

Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : SO2(g) is absorbed to a large extent than H2(g) on activated charcoal. Reason R : SO2(g) has a higher critical temperature than H2(g). In the light of the above statements, choose the most appropriate answer from the options given below.

Match List - I with List - II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I (compound) List - II (effect/affected species) (a) Carbon monoxide (i) Carcinogenic (b) Sulphur dioxide (ii) Metabolized by pyrus plants (c) Polychlorinated biphenyls (iii) haemoglobin (d) Oxides of Nitrogen (iv) Stiffness of flower buds Choose the correct answer from the options given below :

Number of Cl = O bonds in chlorous acid, chloric acid and perchloric acid respectively are :

The incorrect statement is :