Practice Test

Q1) Arne Wilhelm Kaurin Tiselius made electrophoresis a very powerful technique for studing mixtures of Show Answer

Q2) A boundry separating two phases is called Show Answer

Q3) Which of the following statement is NOT correct regarding the adsorption of a gas on the surface of the solid? Show Answer

Q4) Adsorption is multilayer in case of______ adsorption. Show Answer

Q5) The extent of physical adsorption increases with Show Answer

Q6) Which one of the following statements is wrong? Show Answer

Q7) Chemical adsorption Show Answer

Q8) ______ is defined as the phenomenon of accumulation of molecules of one substance on the active surface of other substance due to unbalanced forces of attraction. Show Answer

Q9) The substance which has a tendency to adsorb the molecules of other substance on the surface of it is called Show Answer

Q10) Which of the following is an example of endothermic reaction? Show Answer

Q11) _______ is the process in which adsorbate molecules are held on the adsorbent by chemical bonds. Show Answer

Q12) The extent of physical adsorption Show Answer

Q13) In physical adsorption, gas molecules are bound on the solid surface by Show Answer

Q14) Physical adsorption occurs rapidly at______ temperature Show Answer

Q15) Which one of the following is a property of physisorption? Show Answer

Q16) Chemisorption was first considered by Show Answer

Q17) What is true about chemical adsorption Show Answer

Q18) Which of the following is NOT applicable to chemisorption? Show Answer

Q19) The relationship between equilibrium pressure of a gas and its amount adsorbed on the solid adsorbent at constant temperature is called Show Answer

Q20) The curve showing the variation of adsorption with pressure at constant temperature is called Show Answer

Q21) Freundlich isotherm equation is not applicable at Show Answer

Q22) Homogeneous catalysis implies that Show Answer

Q23) A catalyst in the finely divided state is more efficient because in this state Show Answer

Q24) Which is the characteristic of a catalyst? Show Answer

Q25) Pick out the correct statement Show Answer

Q26) Reaction catalyzed by heterogeneous catalysts are called Show Answer

Q27) Which of the following catalysis can be explained by the adsorption theory? Show Answer

Q28) The substance which do not act as catalyst but increase the activity of the catalyst are called Show Answer

Q29) Enzymes are Show Answer

Q30) One molecule of most of the enzymes acts on_______ reactant molecules per second. Show Answer

Q31) Addition of 2% ethanol in chloroform when used as anaesthetic, there ethanol acts as Show Answer

Q32) Identify the correct statement Show Answer

Q33) Colloidal solutions are Show Answer

Q34) The phase in which the Colloidal particles are dispersed is known as Show Answer

Q35) Colloidal particles possess the remarkable property of adsorption which is due to Show Answer

Q36) Electrophoresis is the migration of Colloidal particle under the influence of Show Answer

Q37) The movement of Colloidal particles is Show Answer

Q38) Which one of the following is NOT Colloidal in nature? Show Answer

Q39) In lyophobic sols Show Answer

Q40) The zig - zag movement of the Colloidal particles in a Colloidal sol was observed by Show Answer

Q41) The zig - zag movement of the Colloidal particles in a Colloidal sol is due to Show Answer

Q42) The stability of lyophobic colloids is due to Show Answer

Q43) The charge on the colloidal particle can be determined by Show Answer

Q44) Tyndall effect is shown by Show Answer

Q45) In which one of the following properties, emulsion differ from Colloidal sols ? Show Answer

Q46) Mist is an example of Colloidal system of Show Answer

Q47) The ability of ion to bring about coagulation of a given Colloidal solution depends upon Show Answer

Q48) When a Colloidal solution is observed under ultra microscope we can see Show Answer

Q49) The number of phases in Colloidal system are Show Answer

Q50) Which is NOT a Colloidal solution of gas in lliquid? Show Answer

Q51) The dispersed phase in milk is Show Answer

Q52) Which of the following is an example of Solid - Solid system ? Show Answer

Q53) The word colloid was introduced by Show Answer

Q54) The main difference between crystalloids and Colloids is that of Show Answer

Q55) Smoke is an example for Show Answer

Q56) Colloidal system of a liquid or solid dispersed in a gaseous dispersion medium is called Show Answer

Q57) How many Colloidal system are possible? Show Answer

Q58) When sand is stirred into water, the mixture so obtained is a Show Answer

Q59) Clouds represent an example of dispersion of Show Answer

Q60) Colloidal particles in a dispersion medium form Show Answer

Q61) Coagulation of sol takes place Show Answer

Q62) Which type of colloid is air? Show Answer

Q63) Colloidal system of a liquid dispersed in a liquid medium is called Show Answer

Q64) One significant difference between true solutions and colloidal suspension is that colloidal suspensions Show Answer

Q65) Which of the following is NOT an example of macromolecular colloidal particles? Show Answer

Q66) In case of lyophilic sol, the surface tension of the sol is Show Answer

Q67) Lyophilic sols are more stable than lyophobic sols because Show Answer

Q68) Which one of this is a lyophilic sol? Show Answer

Q69) An emulsion is a dispersion of a Show Answer

Q70) ______ is the example of oil in water emulsion Show Answer

Q71) Water-loving colloids are called Show Answer

Q72) An example of emulsion is Show Answer

Q73) Hardy-Schulze law may be expressed as Show Answer

Q74) Brownian movement is due to Show Answer

Q75) In which of the following is Tyndall effect not observed? Show Answer

Q76) Colloidal particles exibit Tyndall effect due to Show Answer

Q77) Which of the following indicates the charge on colloidal particles? Show Answer

Q78) Tyndall effect would be observed in a Show Answer

Q79) Brownian motion shown by colloidal particle is its ________ property. Show Answer

Q80) The random motion of colloidal particles in the dispersion medium is referred to as Show Answer

Q81) In the adsorption of oxalic acid by activated charcoal, the activated charcoal is known as Show Answer

Q82) How many layers are adsorbed in chemical adsorption? Show Answer

Q83) Chloroform on oxidation by air forms Show Answer

Q84) Which of the following is NOT a colloid? Show Answer

Q85) Butter represents colloidal solution of Show Answer

Q86) Sky looks blue due to Show Answer

Q87) Which one of the following statements is wrong about physical adsorption?
Show Answer

Q88) Which of the following statements is NOT correct regarding chemical adsorption?
Show Answer

Q89) The gas which is adsorbed in minimum amount by activated charcoal is Show Answer

Q90) Which of the following is neither an example of physical adsorption nor chemical adsorption? Show Answer

Q91) Which of the following is an example of chemical Adsorption? Show Answer

Q92) The heat of chemisorption is______ Show Answer

Q93) Freundlich's asorption isotherm is given by Show Answer

Q94) Straight line in Freundlich adsorption isotherm is obtained on plotting a graph of Show Answer

Q95) Adsorption at low pressure, according to Freundlich adsorption isotherm is proportional to Show Answer

Q96) Enzymes have high molecular mass ranging between Show Answer

Q97) During hydrogenation of oils, which one of the following catalyst is used? Show Answer

Q98) In chemical reaction, catalyst Show Answer

Q99) Identify the incorrect statement : Show Answer