Which of the following statemetns about ideal gases is true.
\r\n","choices":[{"text":"they have strong intermolecular forces
\r\n","value":"A"},{"text":"Their particles have significant volume
\r\n","value":"B"},{"text":"Their volume is mainly due to particle size
\r\n","value":"C"},{"text":"They have negligible intermolecular forces
\r\n","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":1066133,"question":"Which one of the following effects explains the cooling during the sudden expasion of a gas.
\r\n","choices":[{"text":"Boyle's Effect
\r\n","value":"A"},{"text":"Joule Thomson Effect
\r\n","value":"B"},{"text":"Charles Effect
\r\n","value":"C"},{"text":"Avogadr's law
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066132,"question":"Liquid crystals exhibit properties.
\r\n","choices":[{"text":"Only like solids
\r\n","value":"A"},{"text":"Only like liquid
\r\n","value":"B"},{"text":"Between solids and liquids
\r\n","value":"C"},{"text":"Unliek solids or liquids
\r\n","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066131,"question":"Which type of intermolecular force is present in all types of moleclues regardless of their polarity.
\r\n","choices":[{"text":"Dipole -dipole forces
\r\n","value":"A"},{"text":"London dispersion forces
\r\n","value":"B"},{"text":"Hydrogen bonds
\r\n","value":"C"},{"text":"Ion dipole forces
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066130,"question":"Which of the following is a characteristic property of crystalling solids.
\r\n","choices":[{"text":"they have a range of melting points
\r\n","value":"A"},{"text":"They are isotrople
\r\n","value":"B"},{"text":"they have adefinite and sharp melting point
\r\n","value":"C"},{"text":"They lack a regular arrangeness of particles
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066129,"question":"Why can gases be compressed easily.
\r\n","choices":[{"text":"Because they have strong intermolecular forces
\r\n","value":"A"},{"text":"Becasue their particles are lightly packed
\r\n","value":"B"},{"text":"Because most of their volume is empty space
\r\n","value":"C"},{"text":"Beacuse they are denser than solids
\r\n","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066128,"question":"Which state of matter exists only within a narrow range of temperature and presssure.
\r\n","choices":[{"text":"Liquid
\r\n","value":"A"},{"text":"Solid
\r\n","value":"B"},{"text":"Gas
\r\n","value":"C"},{"text":"Plasma
\r\n","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066127,"question":"Surface tensin of liquid is due to.
\r\n","choices":[{"text":"Inword pull of surface molecule
\r\n","value":"A"},{"text":"Upard pull from the surface
\r\n","value":"B"},{"text":"Collision of molecules
\r\n","value":"C"},{"text":"Repulsive forces
\r\n","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066126,"question":"When water freezes at 0 oC its density decrease due to.
\r\n","choices":[{"text":"Cubic structur eof ice
\r\n","value":"A"},{"text":"Empty spces present in the structure of ice
\r\n","value":"B"},{"text":"Derease in volume
\r\n","value":"C"},{"text":"Decrease in viscosity
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066125,"question":"When the vapour pressure of a liquid equals the external pressure, what phenomenon occurs.
\r\n","choices":[{"text":"Sublimation
\r\n","value":"A"},{"text":"Bioling
\r\n","value":"B"},{"text":"Freezing
\r\n","value":"C"},{"text":"condensation
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066124,"question":"London dispersion forces are teh only forces present among.
\r\n","choices":[{"text":"Molecules of water in liquid state
\r\n","value":"A"},{"text":"Atoms of helium in gaseous stat at high temperature
\r\n","value":"B"},{"text":"Molecuels of solid iodine
\r\n","value":"C"},{"text":"Molecules of hydrogen chloride gas
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066123,"question":"If 16 g of O2 react with excess C2H6,how many gamof CO2 will be formed. 2C2H6+7O2-----------------4CO2 +5H2O
\r\n","choices":[{"text":"22 g
\r\n","value":"A"},{"text":"13 g
\r\n","value":"B"},{"text":"9 g
\r\n","value":"C"},{"text":"7g
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066122,"question":"A mixture of 8 g of H2 with 8 g of O2 is ignited 2H2 +O2----------------2H2O What is the mass of water formed.
\r\n","choices":[{"text":"9 g
\r\n","value":"A"},{"text":"36 g
\r\n","value":"B"},{"text":"16 g
\r\n","value":"C"},{"text":"72 g
\r\n","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066121,"question":"How many moles of water are proeuced by buringing 4 moles of H2 with excess of oxygen.
\r\n","choices":[{"text":"1 mole
\r\n","value":"A"},{"text":"2moles
\r\n","value":"B"},{"text":"3 moles
\r\n","value":"C"},{"text":"4 moles
\r\n","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":1066120,"question":"The reatant which consumes earlier and gives lest quantity of product is called.
\r\n","choices":[{"text":"Reactant
\r\n","value":"A"},{"text":"Limiting reacant
\r\n","value":"B"},{"text":"Stiochiometry
\r\n","value":"C"},{"text":"Stoichiometric amount
\r\n","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066119,"question":"A limiting reactatn is the one which
\r\n","choices":[{"text":"Is taken on lesser quantity in gram to compared to other reactionts
\r\n","value":"A"},{"text":"Is taken in lesser quantity in volume as compared to the other reactants
\r\n","value":"B"},{"text":"Gives the maximum amount o fthe produce which is required
\r\n","value":"C"},{"text":"Gives teh minimum amountof the proudcut under considerationn
\r\n","value":"D"},{"value":"E"}]},{"id":1066118,"question":"What the mass of oxygen obtaingng from 72 g of pure water.
\r\n","choices":[{"text":"16 g
\r\n","value":"A"},{"text":"32 g
\r\n","value":"B"},{"text":"64 g
\r\n","value":"C"},{"text":"72 g
\r\n","value":"D"},{"value":"E"}],"correctAnswer":3}]