KARNATAKA CET CHEMISTRYâ2002
2002
KARNATAKA CET CHEMISTRY‐2002 www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002
1. The set of compounds in which the reactivity of halogen atom in the ascending order is a. vinyl chloride, chlorobenzene, chloroethane b. vinyl chloride, chloroethane, chlorobenzene c. chlorobenzene, vinyl chloride, chloroethane d. chloroethane, chlorobenzene, vinyl chloride 2. Drying oil invariably contains a. Stearic acid b. Butyric acid c. Linoleic acid d. Lauric acid 3. A compound that undergoes bromination easily is a. Benzoic acid b. Toluene c. Benzene d. Phenol 4. Iron loses magnetic property at a. 1000K b. Melting point c. Boiling point d. Curie point 5. Imino acid among these compounds is a. Tyrosine b. Lysine c. Serine d. Proline 6. A sugar that is not a disaccharide among the following is a. Lactose b. Galactose c. Sucrose d. Maltose 7. methanol is a. CH3COCH3 b. CH3CHO
2
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. HCHO d. CH3OH 8. Aluminium oxide is not reduced by chemical reactions since a. The process pollutes the environment b. Reducing agents contaminate c. Aluminum oxide is reactive d. Aluminum oxide is highly stable 9. A condensation polymer among the following polymers is a. Polystyrene b. Teflon c. Decron d. PVC 10. The simplest way to check whether a system is colloidal is by a. Finding out particle size b. Electro dialysis c. Brownian movement d. Tyndall effect 11. An example of a salt that will not hydrolyze is a. CH3COOH b. CH3COONH4 c. KCl d. NH4Cl 12. An example for a double salt is a. Cobalthexamine chloride b. Potassium ferricyanide c. Mohr’s salt d. Cuprammonium sulphate 13. An example for a strong electrolyte is a. Ammonium hydroxide b. Urea c. Sodium acetate d. Sugar 14. An ester used as medicine is a. Methyl salicylate b. Ethyl benzoate
3
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. Ethyl acetate d. Methyl acetate 15. A cuprous ore among the following is a. Malachite b. Cuprite c. Azurite d. Chalcopyrites 16. An organic acid without a carboxylic acid group is a. Oxalic acid b. Picric acid c. Ascorbic acid d. Vinegar 17. Glacial acetic acid is obtained by a. Treating vinegar with dehydrating agents b. Chemically separating acetic acid c. Distilling vinegar d. Crystallizing, separating and melting acetic acid 18. Reaction of aniline with benzaldehyde is a. Condensation b. Polymerisaiton c. Substitution d. Addition 19. C 14 is a. An artificial nonradiocative isotope b. A natural nonradioactive isotope c. A natural radioactive isotope d. An artificial isotope 20. Halo alkane in the presence of alcoholic KOH undergoes a. Polymerization b. Elimination c. Substitution d. Demerization 21. Aqueous solution of hydrogen sulphide and sulphur dioxide with mixed together yield a. Hydrogen and sulphurous acid b. Sulphur trioxide and water
4
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. Hydrogen peroxide and sulphur d. Sulphur and water 22. Purine derivative among the following bases in a. Guanine b. Cytosine c. Thymine d. Uracil 23. Octane number is zero for a. Isoocaten b. Nocaten c. Isoheptane d. Nheptane 24. For a forbiatl the values of m are a. 0, +1, +2, +3 b. 1,0, +1 c. 3, 2, 1, 0, +1, +2, +3 d. 2, 1, 0, +1, +2 25. The intensive property among these quantities is a. Mass/volume b. Enthalpy c. Volume d. Mass 26. Penta valence in phosphorus is more stable when compared to that of nitrogen even though they belong to same group, is due to a. Inert nature of nitrogen b. Reactiviey of phosphours c. Larger size of phosphorus atom d. Dissimilar electronic configuration 27. A salt producing hydrocarbon among these compounds is a. Methane b. Ethane c. Ethyne d. Ethane 28. Chloride ion and potassium ion are isoelectronic.T hen a. Relative size cannot r predicted
5
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 b. Potassium ion is relatively bigger c. Chloride ion is bigger than potassium ion d. Their sizes are same 29. Van der Waal’s equation for ‘n’ moles of a gas is a. ( P +
na )( v - nb ) = RT v 2
n 2 a b. ( P + 2 )( v - nb) = nRT v c. ( P +
n 2 a )(v - nb) = RT v 2
d. ( P +
a )(v - nb ) = nRT v 2
30. In a reversible reaction a catalyst will affect a. Neither the rate of forward reaction nor the rate of reverse reaction b. The rate of forward reaction and reverse reaction equally c. The rate of reverse reaction d. The rate of forward reaction 31. Covalent compounds have low melting point because a. Covalent bond is less exothermic b. Covalent molecules are held by weak van der Waal’s force of attraction c. Covalent molecules have definite shape d. Covalent bond is weaker than ionic bond 32. Smallest among these species is a. Lithium ion b. Lithium c. Helium d. Hydrogen 33. Sodium chloride is an ionic compound whereas hydrogen chloride gas is mainly covalent because a. Hydrogen chloride is a gas b. Electro negativity difference in the case of hydrogen and chlorine is less than 2. c. Sodium is reactive d. Hydrogen is a nonmetal 34. A drug that is antipyretic as well as analgesic is
6
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 a. Chloroquin b. Pencililin c. Chloropromazine hydrochloride d. Para acetamidophenol 35. Order of a reaction is decided by a. Pressure b. Molecularity c. Mechanism of reaction as well as relative concentration of reactants d. Temperature 36. In the case of auto catalysis a. Solvent catalyses b. Product catalyses c. Heat produced in the reaction catalyses d. Reactant catalyses 37. Half life of a reaction is found to be inversely proportional to the cube of initial concentration. The order reaction is a. 2 b. 5 c. 3 d. 4 38. Which of the following statements is true? a.
DG is always less than DH
b. DG is always greater than DH c. DG is always proportional to DH d. DG may be lesser or greater or equal to DH 39. A neutral fertilizer among these compound is a. Urea b. Ammonium nitrate c. Ammonium sulphate d. CAN 40. Which among the following statements is false? a. Particle size of adsorbent will not affect the amount of adsorption b. The adsorption may be monolay erd or multi layred. c. Increase of temperature may decrease the amount of adsorption d. Increase of pressure increases the amount of adsorption
7
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 41. Water is a a. Aprotic solvent b. Amphiprotic solvent c. Protophilic solvent d. Protophobic solvent 42. A smuggler could not carry gold by depositing iron on the gold surface since a. Gold has lower standard reduction potential than Iron b. Gold has higher standard reduction potential than Iron c. Iron rust d. Gold is denser 43. Z X
M
+ 2 He 4 ® 15 P 30 + 0 n1
a. Z=13;M=27 b. Z=12;M=27 c. Z=13;M=28 d. Z=12;M=17 44. A is an aqueous acid; B is an aqueous base. They are diluted separately, then a. pH of A increase and Ph of b decreases till pH in each case is seven b. pH of a decreases and PH of B increases c. pH of A and B decreases d. pH of a and B increases 45. A radio isotope will not emit a. Gamma rays only b. Gamma and alpha simultaneously c. Beta and gamma rays simultaneously d. Alpha and beta simultaneously 46. Grignard reagent is not prepared in aqueous medium but prepared in ether medium, because a. The reagent becomes inactive in water b. The reagent react with water c. The reagent is highly reactive in ether d. It is insoluble in water 47. Ammonium ion is a. Both an acid and a base b. Neither an acid nor a base c. A conjugate base
8
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 d. A conjugate acid 48. Chemical bond implies a. Attraction and repulsion balanced at a particular distance b. Attraction and repulsion c. Repulsion d. Attraction 49. A lone pair of electrons in an atom implies a. A pair of electrons involved in bonding b. A pair of valence electrons not involved in bonding c. A pair of valence electrons d. A pair of electrons 50. In the case of a radio isotope the value of T½ and l are identical in magnitude. The value l is a. (0.693) ½ b. 0.693 c. (0.693) 2 d. 1/0.0693 51. Heat treatment alters the properties of steel due to a. Partial rusting b. Chemical reaction on heating c. Change in the lattice structure due to differential rate of cooling d. Change in the residual energy 52. 20 ml of 0.25 N strong acid and 30 ml 0.2 N of strong base are mixed ; the resulting solution is a. 0.025 N basic b. 0.02 N acidic c. 0.025 N acidic d. 0.02 N basic 53. 3 g of an oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of metal is a. 20 b. 12 c. 3.25 d. 33.25
9
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 54. A chemical reaction was carried out at 300 K and 280 K. the rate constants were found to be K1 and K2 respectively a. K 2 » 0.5 K1 b. K 2 » 0.25 K1 c. K 2 » 2 K1 d. K 2 » 4 K1 55. Biogas production is more useful when compared to the direct use of ‘dung’ because a. Production of biogas involves less labour b. Both fuel and fertilizer value are effectively utilized c. The fertilizer produced is a fluid d. Fuel is quickly produced 56. Kinetic theory of gases presumes that collisions between the molecules to be perfectly elastic because a. The molecules are tiny b. Collisions will not split the molecule c. The temperature remains constant irrespective of collisions d. The molecules are rigid 57. The rate of forward reaction is two times that of reverse reaction at a given temperature and identical concentration. K equilibrium is a. 2.0 b. 2.5 c. 1.5 d. 0.5 58. Compounds with high heat of formation are less stable because a. Molecules of such compounds are distorted b. High temperature is required to synthesize them c. Energy rich state leads to instability d. It is difficult to synthesize them 59. 30 g of Magnesium and 30 g of oxygen are reacted and the residual mixture contains a. 50 g of Magnesium oxide and 10 g of Oxygen b. 45 g of Magnesium oxide and 15 g of Oxygen c. 40 g of Magnesium oxide and 20 g of Oxygen d. 60 g of Magnesium oxide only
10
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 60. Heat of neutralization of weak acid and strong base is less than the heat of neutralization of strong acid and strong base due to a. Salt of weak acid and strong base is not stable b. Energy has to be spent for the total dissociation of weak acid c. Incomplete neutralization of weak acid d. Incomplete dissolution of weak acid
11
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002
1. The set of compounds in which the reactivity of halogen atom in the ascending order is a. vinyl chloride, chlorobenzene, chloroethane b. vinyl chloride, chloroethane, chlorobenzene c. chlorobenzene, vinyl chloride, chloroethane d. chloroethane, chlorobenzene, vinyl chloride 2. Drying oil invariably contains a. Stearic acid b. Butyric acid c. Linoleic acid d. Lauric acid 3. A compound that undergoes bromination easily is a. Benzoic acid b. Toluene c. Benzene d. Phenol 4. Iron loses magnetic property at a. 1000K b. Melting point c. Boiling point d. Curie point 5. Imino acid among these compounds is a. Tyrosine b. Lysine c. Serine d. Proline 6. A sugar that is not a disaccharide among the following is a. Lactose b. Galactose c. Sucrose d. Maltose 7. methanol is a. CH3COCH3 b. CH3CHO
2
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. HCHO d. CH3OH 8. Aluminium oxide is not reduced by chemical reactions since a. The process pollutes the environment b. Reducing agents contaminate c. Aluminum oxide is reactive d. Aluminum oxide is highly stable 9. A condensation polymer among the following polymers is a. Polystyrene b. Teflon c. Decron d. PVC 10. The simplest way to check whether a system is colloidal is by a. Finding out particle size b. Electro dialysis c. Brownian movement d. Tyndall effect 11. An example of a salt that will not hydrolyze is a. CH3COOH b. CH3COONH4 c. KCl d. NH4Cl 12. An example for a double salt is a. Cobalthexamine chloride b. Potassium ferricyanide c. Mohr’s salt d. Cuprammonium sulphate 13. An example for a strong electrolyte is a. Ammonium hydroxide b. Urea c. Sodium acetate d. Sugar 14. An ester used as medicine is a. Methyl salicylate b. Ethyl benzoate
3
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. Ethyl acetate d. Methyl acetate 15. A cuprous ore among the following is a. Malachite b. Cuprite c. Azurite d. Chalcopyrites 16. An organic acid without a carboxylic acid group is a. Oxalic acid b. Picric acid c. Ascorbic acid d. Vinegar 17. Glacial acetic acid is obtained by a. Treating vinegar with dehydrating agents b. Chemically separating acetic acid c. Distilling vinegar d. Crystallizing, separating and melting acetic acid 18. Reaction of aniline with benzaldehyde is a. Condensation b. Polymerisaiton c. Substitution d. Addition 19. C 14 is a. An artificial nonradiocative isotope b. A natural nonradioactive isotope c. A natural radioactive isotope d. An artificial isotope 20. Halo alkane in the presence of alcoholic KOH undergoes a. Polymerization b. Elimination c. Substitution d. Demerization 21. Aqueous solution of hydrogen sulphide and sulphur dioxide with mixed together yield a. Hydrogen and sulphurous acid b. Sulphur trioxide and water
4
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 c. Hydrogen peroxide and sulphur d. Sulphur and water 22. Purine derivative among the following bases in a. Guanine b. Cytosine c. Thymine d. Uracil 23. Octane number is zero for a. Isoocaten b. Nocaten c. Isoheptane d. Nheptane 24. For a forbiatl the values of m are a. 0, +1, +2, +3 b. 1,0, +1 c. 3, 2, 1, 0, +1, +2, +3 d. 2, 1, 0, +1, +2 25. The intensive property among these quantities is a. Mass/volume b. Enthalpy c. Volume d. Mass 26. Penta valence in phosphorus is more stable when compared to that of nitrogen even though they belong to same group, is due to a. Inert nature of nitrogen b. Reactiviey of phosphours c. Larger size of phosphorus atom d. Dissimilar electronic configuration 27. A salt producing hydrocarbon among these compounds is a. Methane b. Ethane c. Ethyne d. Ethane 28. Chloride ion and potassium ion are isoelectronic.T hen a. Relative size cannot r predicted
5
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 b. Potassium ion is relatively bigger c. Chloride ion is bigger than potassium ion d. Their sizes are same 29. Van der Waal’s equation for ‘n’ moles of a gas is a. ( P +
na )( v - nb ) = RT v 2
n 2 a b. ( P + 2 )( v - nb) = nRT v c. ( P +
n 2 a )(v - nb) = RT v 2
d. ( P +
a )(v - nb ) = nRT v 2
30. In a reversible reaction a catalyst will affect a. Neither the rate of forward reaction nor the rate of reverse reaction b. The rate of forward reaction and reverse reaction equally c. The rate of reverse reaction d. The rate of forward reaction 31. Covalent compounds have low melting point because a. Covalent bond is less exothermic b. Covalent molecules are held by weak van der Waal’s force of attraction c. Covalent molecules have definite shape d. Covalent bond is weaker than ionic bond 32. Smallest among these species is a. Lithium ion b. Lithium c. Helium d. Hydrogen 33. Sodium chloride is an ionic compound whereas hydrogen chloride gas is mainly covalent because a. Hydrogen chloride is a gas b. Electro negativity difference in the case of hydrogen and chlorine is less than 2. c. Sodium is reactive d. Hydrogen is a nonmetal 34. A drug that is antipyretic as well as analgesic is
6
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 a. Chloroquin b. Pencililin c. Chloropromazine hydrochloride d. Para acetamidophenol 35. Order of a reaction is decided by a. Pressure b. Molecularity c. Mechanism of reaction as well as relative concentration of reactants d. Temperature 36. In the case of auto catalysis a. Solvent catalyses b. Product catalyses c. Heat produced in the reaction catalyses d. Reactant catalyses 37. Half life of a reaction is found to be inversely proportional to the cube of initial concentration. The order reaction is a. 2 b. 5 c. 3 d. 4 38. Which of the following statements is true? a.
DG is always less than DH
b. DG is always greater than DH c. DG is always proportional to DH d. DG may be lesser or greater or equal to DH 39. A neutral fertilizer among these compound is a. Urea b. Ammonium nitrate c. Ammonium sulphate d. CAN 40. Which among the following statements is false? a. Particle size of adsorbent will not affect the amount of adsorption b. The adsorption may be monolay erd or multi layred. c. Increase of temperature may decrease the amount of adsorption d. Increase of pressure increases the amount of adsorption
7
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 41. Water is a a. Aprotic solvent b. Amphiprotic solvent c. Protophilic solvent d. Protophobic solvent 42. A smuggler could not carry gold by depositing iron on the gold surface since a. Gold has lower standard reduction potential than Iron b. Gold has higher standard reduction potential than Iron c. Iron rust d. Gold is denser 43. Z X
M
+ 2 He 4 ® 15 P 30 + 0 n1
a. Z=13;M=27 b. Z=12;M=27 c. Z=13;M=28 d. Z=12;M=17 44. A is an aqueous acid; B is an aqueous base. They are diluted separately, then a. pH of A increase and Ph of b decreases till pH in each case is seven b. pH of a decreases and PH of B increases c. pH of A and B decreases d. pH of a and B increases 45. A radio isotope will not emit a. Gamma rays only b. Gamma and alpha simultaneously c. Beta and gamma rays simultaneously d. Alpha and beta simultaneously 46. Grignard reagent is not prepared in aqueous medium but prepared in ether medium, because a. The reagent becomes inactive in water b. The reagent react with water c. The reagent is highly reactive in ether d. It is insoluble in water 47. Ammonium ion is a. Both an acid and a base b. Neither an acid nor a base c. A conjugate base
8
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 d. A conjugate acid 48. Chemical bond implies a. Attraction and repulsion balanced at a particular distance b. Attraction and repulsion c. Repulsion d. Attraction 49. A lone pair of electrons in an atom implies a. A pair of electrons involved in bonding b. A pair of valence electrons not involved in bonding c. A pair of valence electrons d. A pair of electrons 50. In the case of a radio isotope the value of T½ and l are identical in magnitude. The value l is a. (0.693) ½ b. 0.693 c. (0.693) 2 d. 1/0.0693 51. Heat treatment alters the properties of steel due to a. Partial rusting b. Chemical reaction on heating c. Change in the lattice structure due to differential rate of cooling d. Change in the residual energy 52. 20 ml of 0.25 N strong acid and 30 ml 0.2 N of strong base are mixed ; the resulting solution is a. 0.025 N basic b. 0.02 N acidic c. 0.025 N acidic d. 0.02 N basic 53. 3 g of an oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of metal is a. 20 b. 12 c. 3.25 d. 33.25
9
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 54. A chemical reaction was carried out at 300 K and 280 K. the rate constants were found to be K1 and K2 respectively a. K 2 » 0.5 K1 b. K 2 » 0.25 K1 c. K 2 » 2 K1 d. K 2 » 4 K1 55. Biogas production is more useful when compared to the direct use of ‘dung’ because a. Production of biogas involves less labour b. Both fuel and fertilizer value are effectively utilized c. The fertilizer produced is a fluid d. Fuel is quickly produced 56. Kinetic theory of gases presumes that collisions between the molecules to be perfectly elastic because a. The molecules are tiny b. Collisions will not split the molecule c. The temperature remains constant irrespective of collisions d. The molecules are rigid 57. The rate of forward reaction is two times that of reverse reaction at a given temperature and identical concentration. K equilibrium is a. 2.0 b. 2.5 c. 1.5 d. 0.5 58. Compounds with high heat of formation are less stable because a. Molecules of such compounds are distorted b. High temperature is required to synthesize them c. Energy rich state leads to instability d. It is difficult to synthesize them 59. 30 g of Magnesium and 30 g of oxygen are reacted and the residual mixture contains a. 50 g of Magnesium oxide and 10 g of Oxygen b. 45 g of Magnesium oxide and 15 g of Oxygen c. 40 g of Magnesium oxide and 20 g of Oxygen d. 60 g of Magnesium oxide only
10
www.vinuthetutor.com
KARNATAKA CET CHEMISTRY‐2002 60. Heat of neutralization of weak acid and strong base is less than the heat of neutralization of strong acid and strong base due to a. Salt of weak acid and strong base is not stable b. Energy has to be spent for the total dissociation of weak acid c. Incomplete neutralization of weak acid d. Incomplete dissolution of weak acid
11
www.vinuthetutor.com
