question_answer1) Define rate of a chemical reaction.
question_answer2) What is effective collision?
question_answer3) In what condition order and molecularity of a reaction become equal?
question_answer4) Define rate law.
question_answer5) Draw a graph between concentration and time for a zero order reaction.
question_answer6) What is collision frequency?
question_answer7) What is average rate of reaction?
question_answer8) What do you mean by rate determining step?
question_answer9) Draw a graph between 
and time for a first order reaction.
question_answer10) Give the unit of rate constant of a reaction.
question_answer11) What is instantaneous rate of reaction?
question_answer12) In which type of reaction order and molecularity are different?
question_answer13) What is rate constant?
question_answer14) What is half life period of a reaction?
question_answer15) Name the two barriers for a chemical reaction to occur.
question_answer16) Define molecularity of a reaction.
question_answer17) Draw a graph between log10[R] and t for a first order reaction.
question_answer18) Write units of rate of reaction.
question_answer19) What is order of reaction?
question_answer20) What is zero order reaction?
question_answer22) What is pseudo first order reaction? Give an example.
question_answer23) What is catalyst? What is the effect of catalyst on the rate of a reaction?
question_answer25) What is average rate of reaction? How is it determined?
question_answer27) What is activation energy? How is it calculated?
question_answer28) What is instantaneous rate of reaction? How is it determined?
question_answer29) How does a catalyst increase the rate of a reaction?
question_answer30) What is the effect of temperature on the reaction rate?
question_answer31) Define first order reaction with one suitable example.
question_answer32) Mention differences between order and molecularity of a reaction.
question_answer33) What is intermediate complex theory of catalysis?
question_answer35)
What is zero order reaction? Give one example of zero order reaction.
question_answer36) Write Arrhenius equation and explain the terms involved.
question_answer38) Draw a graph between log10k and 1 / T of a reaction.
question_answer39) What is the drawback of collision theory?
question_answer40) What are the limitations of a catalyst?
question_answer42) Why rate of reaction increases with rise in temperature?
question_answer43) Reaction having molecularity greater than three is not observed. Explain.
question_answer65) Why
are wheels of an automobile made circular?
question_answer67) Why is it
difficult to climb up a greasy pole?
question_answer74) Can a body remain in rest position when external forces are
acting on it?
question_answer80) A force is always required to move a body uniformly.
Comment.
question_answer83) On what factors does the thrust on a rocket depend?
question_answer92) Action and reaction forces do not balance each other. Why?
question_answer93) What is the principle of working of a rocket?
question_answer94) Why does a gun recoil when a bullet is fired?
question_answer96) Sand is thrown
on the tracks covered with snow. Why?
question_answer97) Why do we
easily slip on a rainy day?
question_answer98) Why is it
easier to maintain the motion than to start it?
question_answer99) What are the
factors on which coefficient of friction depends?
question_answer100) What happens to
coefficient of friction, when weight of body is doubled?
question_answer102) Why are wheels
circular?
question_answer103) What type of
friction is involved when an axle rotates in a sleeve?
question_answer104) Is friction
independent of actual area of contact?
question_answer105) The fast moving
vehicles are given streamline shape. Why?
question_answer106) Rubber tyres
are preferred to steel tyres. Why?
question_answer107) What is the
relation between coefficient of friction and angle of repose?
question_answer108) Is friction
a self adjusting force?
question_answer110) Can we get off
a frictionless horizontal surface by jumping?
question_answer118) Heavier
bodies need greater initial effort to put them in motion. Why?
question_answer127) Rocket can move in air
free space, but jet planes cannot. Why?
question_answer128) Carts with rubber tyres are easier to ply than those
with iron wheels.
question_answer129) Why is it difficult to move a bike with its
brakes on?
question_answer130) Sand is spread on tracks covered with snow.
Why?
question_answer132) Is large brake on a bicycle wheel more
effective than a small one? Explain.
question_answer133) How do we save petrol when the tyres of the
motor cycle are fully inflated?
question_answer136) How does a lubricant help in reducing friction?
question_answer137) How does banking of roads reduce wear and tear
of the tyres?
question_answer138) Why has a horse
to pull a cart harder during the first few steps of his motion?
question_answer145) Why does a pilot not fall down, when his
aeroplane loops a vertical loop?
You need to login to perform this action.
You will be redirected in
3 sec
