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1) Homogeneous mixture of two or more than two compounds is called a. solution b. compound c. radical d. ion
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2) The component of solution which is in smaller amount is called a. solvent b. solute c. phase d. ion
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3) Solution with maximum concentration of solute at given temperature is called a. Super saturated solution b. unsaturated solution c. saturated solution d. dilute solution
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4) 10ml of alcohol dissolve in 90ml of water unit of concentration used is a. % w/w b. % w/v c. % v/v d. % v/w
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5) Number of moles in 1 kg of solvent is called a. normality b. molarity c. molality d. mole fraction
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6) 58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be a. 0.1 M b. 1 m c. 1 M d. 0.1 N
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7) In partially miscible liquids the two layers are a. saturated solutions of each liquid b. unsaturated solutions of each liquid c. normal solution of each liquid d. no layer formation takes place
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8) If the volume of solution is equal to sum of volumes of its all components then the solution a. will be an ideal solution b. will be non-ideal solution c. will show deviations from Raoults law d. both b & c
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9) The relative lowering of vapour pressure is a. equal to the mole fraction of solvent b. equal to the mole fraction of solute c. directly proportional to the mole fraction of solute d. both b & c
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10) The solution which distils over with change in composition a. ideal solution b. zeotropic solution c. azeotropic solution d. non-ideal solution
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11) Mixtures which distill over without change in composition called a. zeotropic mixture b. azeotropic mixture c. amphoteric mixture d. ideal solution
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12) Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called a. saturated solution b. solubility c. unsaturated solution d. super saturated solution
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13) Solubility of KCIO3 gives a. continuous and falling solubility curve b. discontinuous and falling solubility curve c. continuous and rising solubility curve d. discontinuous and rising solubility curve
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14) The determination of correct molecular weight from Raoults law is applicable to a. a volatile solute in dilute solution b. a non-electrolyte & non volatile solute in concentrated solution c. a non-electrolyte & non volatile solute in concentrated solute d. non volatile solute in a dilute solution
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15) Boiling point elevations can be measured by a. Beckmanns method b. Landsbergers method c. Linds method d. none of the above
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16) Beckmanns apparatus is used to measure a. boiling point elevation b. depression in freezing point c. lowering of vapour pressure d. lowering of osmotic pressure
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17) Water molecules surrounds more around a. ve ion b. complex ion c. ?ve ion d. neutral atom
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18) The compounds in which water molecules are added are called a. Hydrated ions b. double salts c. hydrates d. complexes
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19) Hydration is a process in which a. Molecules are surrounded by solvent molecules b. Ions are surrounded by solvent molecules c. Both ions and molecules are surrounded by solvent molecules d. Both ions and molecules are surrounded by water molecules
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20) Solution of Na2SO4 will be a. basic b. acidic c. neutral d. cannot be presicted without data
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21) ppm means a. parts of solute in 1000 parts of solvent b. parts of solvent in 1000 parts of solute c. parts of solute in one million parts of solution d. parts of solvent in one million parts of solute
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22) 1 molar solution of glucose in water contains weight of glucose a. 180g/dm3 b. 170g/dm3 c. 190g/dm3 d. 195g/dm3
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23) Water of crystallization can be removed by a. drying b. heating c. evaporation d. All of the above
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24) The relative lowering of vapour pressure is directly proportional to molality if the solution is a. concentrated b. dilute c. saturated solution d. all of the above
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25) Which one of the following salt does not hydrolyzed a. Na2SO4 b. AlCl3 c. CuSO4 d. NH4Cl
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26) Elements in the same vertical group of the periodic table have same a. Number of valence electrons b. Atomic number c. Atomic mass d. Atomic volume
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27) An element having low value of ionization energy and low value of electron affinity is likely to belong to a. Group IA b. Group IB c. Group VIIA d. Group VIII
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28) Which set of elements is listed in order of increasing ionization energy? a. Sb < As < S < P < Cl b. Cl < Sb < P < As < S c. As < Cl < P < S < Sb d. Sb < As < Cl < S < P
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29) Which of the following always increases on going from top to bottom in a group? a. Metallic character b. Electronegativity c. Oxidizing power d. Tendency to get reduced
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30) Which of the p-block elements are not representative elements? a. Alkali metals (I-A) b. Group-14 elements (IV-A) c. Group-18 elements (VIII-A) d. Halogens (VII-A)
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31) Among halogens the highest boiling point is of a. Flrorine b. Chlorine c. Bromine d. Iodine
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32) Which of the following will not form crystalline structure with opporitely charged ions a. H+ b. H- c. Mg2+ d. Ca2+
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33) Which statement is incorrect? a. All the metals are good conductor of electricity. b. All the metals are good conductor of heat c. All the metals form positive ions d. All the metals form acidic oxides
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34) Periodic table provides a basic framework to study elements with respect to their a. Physical properties b. Chemical properties c. Properties of their compounds d. All
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35) The scientist who did not contribute in the construction of periodic table? a. Al-Razi b. Moseley c. Dobereiner d. Democritus
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36) Concept of Triads was introduced by a. Dobereiner b. Newland c. Mendeleev d. Al-Razi
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37) Which element was not known when Mendeleev proposed his classification? a. Hydrogen b. Sodium c. Copper d. Germanium
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38) Elements with similar chemical properties appear in the a. Same family b. Same period c. p block elements d. Right upper corner
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39) Noble gases are named so because they are a. less reactive b. Zero group elements c. Having completely filled valence shell d. All
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40) In modern periodic table all the leements are arranged in ascending order of a. Valency b. Atomic mass c. Atomic number d. Valence electrons
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41) The longest period in the modern periodic table is a. 6th b. 7th c. 2nd and 3rd both d. 5th
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42) Inner transition elements are called a. Lanthanides b. Actinides c. Rare earth metals d. All
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43) Seventh period contains ______________ normal elements a. 2 b. 4 c. 6 d. 8
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44) Modern periodic table has been divided in _______ blocks a. 2 b. 4 c. 8 d. 7
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45) Non-metals usually form ______________ oxides a. Acidic b. Amphoteric c. Neutral d. All of the above
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46) Amphoteric exides are those which possess ________ properties a. Acidic b. Basic c. Acidic and basic d. Neutral and acidic
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47) Best position of hydrogen in the periodic table is above I.A Group which is mainly due to a. Both are electropositive b. Similar outer most shell electronic configuration c. Both form ionic compounds d. All
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48) Hydrogen resembles with carbon because of having a. Same number of electrons in the valence shell b. Similar physical state c. Remarkable reducing properties d. Homovalent (show same valency)
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49) Which one of the following sets consists of all coinage metals? a. Cu Hg Au b. Cu Ag Au c. Ag Au Hg d. Cu Fe Au
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50) In which of the following pairs are elements belonging to the same group? a. Boron & Beryllium b. Nitrogen & Phosphorous c. Magnesium & Aluminium d. Gallium & Helium
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