A) 0.5mole B) 1.0mole C) 5.12mole D) 32.0mole
A) 0.88 mol/dm³ B) 1.14 mol/dm³ C) 11.42 mol/dm³ D) 8.80 mol/dm³
A) Scarcity of food in water B) Reduction in the amount of dissolved oxygen C) Presence of heavy metal ions D) Increase in the level of sediment
A) Paper B) Plastics C) Animal hide D) Wood
A) Passing over treated charcoal B) Aeration C) The use of an ion -exchange resin D) Chlorination
A) Free energy B) Activation energy C) Energy of formation D) Energy of reaction
A) First order reaction B) Fourth order reaction C) Second order reaction D) Zero order reaction
A) Energetics B) Activation energy C) Enthalpy D) Catalyst
A) Reaction profile B) Rate curve C) Activated complex D) Energy barrier
A) Leclanche cell B) Cathodic discharger C) Lead acid accumulator D) Avogadro's cell
A) Electrode potential B) Potential difference C) Electromotive force D) Electrolysis
A) Electrode B) Cathode C) Anode D) Electrolytic cell
A) Oxygen B) Coal C) Natural gas D) Petroleum
A) Breaking of ionic bonds between carbon atoms B) Formation of ionic bonds between carbon atoms C) Formation of covalent bonds between carbon atoms D) Breaking of covalent bonds between carbon atoms
A) 0°C and 1 atmosphere pressure B) 0°C and 0.5 atmosphere pressure C) 25°C and 0.5 atmosphere pressure D) 25°C and 1 atmosphere pressure
A) Volume = Mass ÷ Density B) Mass = Volume × Density C) Mass = Density ÷ Volume D) Volume = Density × Mass
A) CnH2n-2 B) CnH2n C) CnH2n+2 D) CnH2n-4
A) Single bonds between carbon atoms B) Both single and double bonds between carbon atoms C) Triple bonds between carbon atoms D) Double bonds between carbon atoms
A) Ethyne B) Ethene C) Methane D) Benzene
A) Single bonds between carbon atoms B) Both single and double bonds between carbon atoms C) Double bonds between carbon atoms D) Triple bonds between carbon atoms
A) Benzene B) Ethyne C) Methane D) Ethene
A) Ethyne B) Benzene C) Propane D) Butene
A) Decolorize bromine water as well B) Do not react with bromine water C) Turn bromine water green D) React violently with bromine water
A) Cyclic aromatic hydrocarbon B) Linear alkene C) Saturated hydrocarbon D) Alkane
A) Three carbon atoms in a ring B) Six carbon atoms in a ring C) Five carbon atoms in a ring D) Four carbon atoms in a ring
A) It is a strong oxidizing agent B) It readily undergoes combustion C) It is highly reactive with halogens D) It is insoluble in most organic solvents
A) Low reactivity B) Unsaturated nature C) High boiling point D) Delocalized electron cloud
A) Structural isomerism B) Ring-chain isomerism C) Optical isomerism D) Geometric isomerism
A) Butadiene B) Butene C) Butyne D) Butane |