question_answer1) Define rate of a chemical reaction.
View Solution play_arrowquestion_answer2) What is effective collision?
View Solution play_arrowquestion_answer3) In what condition order and molecularity of a reaction become equal?
View Solution play_arrowquestion_answer4) Define rate law.
View Solution play_arrowquestion_answer5) Draw a graph between concentration and time for a zero order reaction.
View Solution play_arrowquestion_answer6) What is collision frequency?
View Solution play_arrowquestion_answer7) What is average rate of reaction?
View Solution play_arrowquestion_answer8) What do you mean by rate determining step?
View Solution play_arrowquestion_answer9) Draw a graph between and time for a first order reaction.
View Solution play_arrowquestion_answer10) Give the unit of rate constant of a reaction.
View Solution play_arrowquestion_answer11) What is instantaneous rate of reaction?
View Solution play_arrowquestion_answer12) In which type of reaction order and molecularity are different?
View Solution play_arrowquestion_answer13) What is rate constant?
View Solution play_arrowquestion_answer14) What is half life period of a reaction?
View Solution play_arrowquestion_answer15) Name the two barriers for a chemical reaction to occur.
View Solution play_arrowquestion_answer16) Define molecularity of a reaction.
View Solution play_arrowquestion_answer17) Draw a graph between log10[R] and t for a first order reaction.
View Solution play_arrowquestion_answer18) Write units of rate of reaction.
View Solution play_arrowquestion_answer19) What is order of reaction?
View Solution play_arrowquestion_answer20) What is zero order reaction?
View Solution play_arrowquestion_answer22) What is pseudo first order reaction? Give an example.
View Solution play_arrowquestion_answer23) What is catalyst? What is the effect of catalyst on the rate of a reaction?
View Solution play_arrowquestion_answer25) What is average rate of reaction? How is it determined?
View Solution play_arrowquestion_answer27) What is activation energy? How is it calculated?
View Solution play_arrowquestion_answer28) What is instantaneous rate of reaction? How is it determined?
View Solution play_arrowquestion_answer29) How does a catalyst increase the rate of a reaction?
View Solution play_arrowquestion_answer30) What is the effect of temperature on the reaction rate?
View Solution play_arrowquestion_answer31) Define first order reaction with one suitable example.
View Solution play_arrowquestion_answer32) Mention differences between order and molecularity of a reaction.
View Solution play_arrowquestion_answer33) What is intermediate complex theory of catalysis?
View Solution play_arrowquestion_answer35) What is zero order reaction? Give one example of zero order reaction.
View Solution play_arrowquestion_answer36) Write Arrhenius equation and explain the terms involved.
View Solution play_arrowquestion_answer38) Draw a graph between log10k and 1 / T of a reaction.
View Solution play_arrowquestion_answer39) What is the drawback of collision theory?
View Solution play_arrowquestion_answer40) What are the limitations of a catalyst?
View Solution play_arrowquestion_answer42) Why rate of reaction increases with rise in temperature?
View Solution play_arrowquestion_answer43) Reaction having molecularity greater than three is not observed. Explain.
View Solution play_arrowquestion_answer65) Why are wheels of an automobile made circular?
View Solution play_arrowquestion_answer67) Why is it difficult to climb up a greasy pole?
View Solution play_arrowquestion_answer74) Can a body remain in rest position when external forces are acting on it?
View Solution play_arrowquestion_answer80) A force is always required to move a body uniformly. Comment.
View Solution play_arrowquestion_answer83) On what factors does the thrust on a rocket depend?
View Solution play_arrowquestion_answer92) Action and reaction forces do not balance each other. Why?
View Solution play_arrowquestion_answer93) What is the principle of working of a rocket?
View Solution play_arrowquestion_answer94) Why does a gun recoil when a bullet is fired?
View Solution play_arrowquestion_answer96) Sand is thrown on the tracks covered with snow. Why?
View Solution play_arrowquestion_answer97) Why do we easily slip on a rainy day?
View Solution play_arrowquestion_answer98) Why is it easier to maintain the motion than to start it?
View Solution play_arrowquestion_answer99) What are the factors on which coefficient of friction depends?
View Solution play_arrowquestion_answer100) What happens to coefficient of friction, when weight of body is doubled?
View Solution play_arrowquestion_answer102) Why are wheels circular?
View Solution play_arrowquestion_answer103) What type of friction is involved when an axle rotates in a sleeve?
View Solution play_arrowquestion_answer104) Is friction independent of actual area of contact?
View Solution play_arrowquestion_answer105) The fast moving vehicles are given streamline shape. Why?
View Solution play_arrowquestion_answer106) Rubber tyres are preferred to steel tyres. Why?
View Solution play_arrowquestion_answer107) What is the relation between coefficient of friction and angle of repose?
View Solution play_arrowquestion_answer108) Is friction a self adjusting force?
View Solution play_arrowquestion_answer110) Can we get off a frictionless horizontal surface by jumping?
View Solution play_arrowquestion_answer118) Heavier bodies need greater initial effort to put them in motion. Why?
View Solution play_arrowquestion_answer127) Rocket can move in air free space, but jet planes cannot. Why?
View Solution play_arrowquestion_answer128) Carts with rubber tyres are easier to ply than those with iron wheels.
View Solution play_arrowquestion_answer129) Why is it difficult to move a bike with its brakes on?
View Solution play_arrowquestion_answer130) Sand is spread on tracks covered with snow. Why?
View Solution play_arrowquestion_answer132) Is large brake on a bicycle wheel more effective than a small one? Explain.
View Solution play_arrowquestion_answer133) How do we save petrol when the tyres of the motor cycle are fully inflated?
View Solution play_arrowquestion_answer136) How does a lubricant help in reducing friction?
View Solution play_arrowquestion_answer137) How does banking of roads reduce wear and tear of the tyres?
View Solution play_arrowquestion_answer138) Why has a horse to pull a cart harder during the first few steps of his motion?
View Solution play_arrowquestion_answer145) Why does a pilot not fall down, when his aeroplane loops a vertical loop?
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