For a reaction A + B => Product, the rate low is given by r = k[A]½ [B]2. What is the order of the reaction ?
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By associating the product with attractive images the advertisers are trying to setup a response to their product with
C) Conditioning
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Choose the correct order for nervous control A) Response, Stimuli B) Stimuli, Response C) Hearing, Stimuli D) Stimuli, Order of brain
(B) Stimuli, Response
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Rate of doing work or rate of transfer of energy is
Correct option is C) power
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Power is defined as P) rate of doing work Q) rate of transfer of energy
Correct option is C) P and Q
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A – In stage 2, death rate reduces but birth rate is constant. R – Population increases rapidly in stage 2.
(c) Both A and R are correct and R is the correct explanation of A.
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Match the statements given in Column I and Column II (i) Catalyst alters the rate of reaction (a) cannot be fraction or zero
(i) → (c) (ii) → (a) (iii) → (d) (iv) → (f) (v) → (b) (vi) → (e)
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A reaction is catalysed by `H^(+)` ions. The reaction has rate constant `3xx10^(-3) min^(-1)` in presence of acid `HA` and `2xx10^(-3) min^(-1)` in pr
Correct Answer - a, b, c
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Which of the following rate laws has an overall order of `0.5` for reaction involving substances `x, y` and `z` ?
Correct Answer - C Order of reaction is sum of the power raised on concentration terms to express rate expression.
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The rate of formation of `SO_(3)` in the reaction `2SO_(2)+O_(2) rarr 2SO_(3)` is 100 g `"min"^(-1)` Hence rate of disappearance of `O_(2)` is
Correct Answer - B `2SO_(2)+O_(2)rarr2SO_(3)` Rate `=-(d[O_(2)])/(dt)=(1)/(2)(d[SO_(3)])/(dt)` `-(d[O_(2)])/(dt)=(1)/(2)((100)/(80))" mol min"^(-1)=(1)/(2)((100)/(80))xx32 g " min"^(-1)` `[because" Molar mass of "O_(2)=32 g//"mol"]` `=20g " min"^(-1)`
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The rate constant of first order reaction whose half-life is 480 s, is
Correct Answer - A For the first order reaction `implies " "k=(0.693 )/(t_(1//2))=(0.693)/(480 sec)=1.44 xx 10^(-3)s^(-1)`
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