Related Questions

’He was equally versatile -----'. Here 'versatile' means-----
A input
B multifaceted
C mobile
D skilled
Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like
A High cost
B Fragile nature
C Easy poisoning tendency
D All of the above
Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for
A Conversion of CO into CO2 in the second compartment
B Conversion of NOx into N2 and NH3 in the first compartment
C Oxidation of unburnt hydrocarbon fuel in the second compartment
D All of the above
The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst.
A Increases
B Decreases
C Remains unaffected
D Unpredictable from the data
The equilibrium constant of chemical reaction __________ in the presence of catalyst.
A Increases
B Decreases
C Remains unaffected
D Can either increase or decrease (depends on the type of catalyst)
A catalytic agent such platinum may be used so that the chemical reaction reaction more rapidly .
A such
B that
C reaction
D rapidly
She was allegedly poisoned by drinking the (remains) of the cocktail. (Choose the meaning of the bracket word)
A drops
B rotten parts
C resude
D small quantity
A catalyst is said to be a negative catalyst, ifit
A Retards the rate of reaction
B Reduces the value of equilibrium constant
C Does not initiate the reaction
D All of the above
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
A (i) platinum (ii) sulphur
B (i) palladium (ii) oxygen
C (i) nickel (ii) sulphur
D (i) nickel (ii) oxygen
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)
A Tan hT/T
B Tan T/T
C Tan hT/tan T
D None of these

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