In a reversible reaction, a catalyst increases the rate of forward reaction__________________?

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If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the ________________ diffusion?

A. Film B. Ash layer C. Pore D. None of these...

Which of the following holds good for an elementary reaction as shown in the bellow figure ?

A. The rate of disappearance of ‘Y’ is equal to the rate of appearance of ‘Z’ B. The rate of disappearance of ‘Y’ is equal to the rate of disappearance of ‘X’ C. Three times the rate of disappearance of ‘X’ is equal to the rate of appearance of ‘Z’ D. The rate of disappearance … Which of the following holds good for an elementary reaction as shown in the bellow figure ?Read More...

Promoter_____________________?

A. Initiates a chemical reaction and is a catalyst by itself B. Alters the position of equilibrium in a reversible reaction C. Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals D. All A., B. and C....

The rate of an autocatalytic reaction as shown in the bellow figure, is given by – rA = k . CA . CB. In this case, the__________________?

A. Plot of – rA Vs CA is a straight line with slope k B. Plot of – rA Vs CA is a hyperbola C. Rate of disappearance of reactant A is maximum, where CA = CB D. Both B & C...

Calcination reaction of limestone (CaCO3 → CaO + CO2) goes to completion in the rotary kiln, because____________________?

A. CaO is not dissociated B. CO2 escapes continuously C. Of high calcination temperature D. CaO is more stable than CaCO3...