Given below are two reactions, involved in the commercial production of dihydrogen (H$$_2$$). The two reactions are carried out at temperature "T$$_1$$" and "T$$_2$$", respectively
$$C(s) + {H_2}O(g)\buildrel {{T_1}} \over \longrightarrow CO(g) + {H_2}(g)$$
$$CO(g) + {H_2}O(g)\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Catalyst}^{{T_2}}} C{O_2}(g) + {H_2}(g)$$
The temperatures T$$_1$$ and T$$_2$$ are correctly related as :
Given
(A) | $$\mathrm{2CO(g)+O_2(g)\to 2CO_2(g)}$$ | $$\mathrm{\Delta H_1^0=-x~kJ~mol^{-1}}$$ | |
---|---|---|---|
(B) | $$\mathrm{C(graphite)+O_2(g)\to CO_2(g)}$$ | $$\mathrm{\Delta H_2^0=-y~kJ~mol^{-1}}$$ |
$$\mathrm{\Delta H^0}$$ for the reaction
$$\mathrm{C(graphite)+\frac{1}{2}O_2(g)\to CO(g)}$$ is :
Match List I with List II
List I Industry |
List II Waste Generated |
||
---|---|---|---|
(A) | Steel plants | (I) | Gypsum |
(B) | Thermal power plants | (II) | Fly ash |
(C) | Fertilizer industries | (III) | Slag |
(D) | Paper mills | (IV) | Bio-degradable wastes |
Choose the correct answer from the options given below :
Isomeric amines with molecular formula C$$_8$$H$$_{11}$$N give the following tests
Isomer (P) $$\Rightarrow$$ Can be prepared by Gabriel phthalimide synthesis
Isomer (Q) $$\Rightarrow$$ Reacts with Hinsberg's reagent to give solid insoluble in NaOH
Isomer (R) $$\Rightarrow$$ Reacts with HONO followed by $$\beta$$-naphthol in NaOH to give red dye.
Isomers (P), (Q) and (R) respectively are