A) 1.0mole B) 5.12mole C) 32.0mole D) 0.5mole
A) 42.00 moles B) 8.4 moles C) 84 moles D) 0.6 mole
A) 8.80 mol/dm³ B) 0.88 mol/dm³ C) 11.42 mol/dm³ D) 1.14 mol/dm³
A) 0.27 B) 6.0 C) 2.7 D) 1.7
A) Presence of heavy metal ions B) Increase in the level of sediment C) Reduction in the amount of dissolved oxygen D) Scarcity of food in water
A) Sodium tetraoxosulphate (VI) B) Calcium tetraoxosulphate (VI) C) Aluminium tetraoxosulphate (VI) D) Copper tetraoxosulphate (VI)
A) Wood B) Animal hide C) Paper D) Plastics
A) Saturated B) Hydrated C) Super saturated D) Unsaturated
A) Passing over treated charcoal B) Aeration C) Chlorination D) The use of an ion -exchange resin
A) Dispersion medium B) Colloids C) Universal solvent D) Concentration
A) Free energy B) Energy of reaction C) Activation energy D) Energy of formation
A) Second order reaction B) First order reaction C) Zero order reaction D) Fourth order reaction
A) Rate of reaction B) Molecularity C) Reaction mechanism D) Rate determining step
A) Catalyst B) Energetics C) Enthalpy D) Activation energy
A) Activated complex B) Rate curve C) Reaction profile D) Energy barrier
A) Leclanche cell B) Cathodic discharger C) Avogadro's cell D) Lead acid accumulator
A) Electrode potential B) Potential difference C) Electromotive force D) Electrolysis
A) Electrode B) Cathode C) Anode D) Electrolytic cell
A) Diffusion of chemicals B) Industrial preparation of NaOH C) Extraction of metals D) Purification of metals
A) 9650 coulombs B) 96500 coulombs C) 965000 coulombs D) 9650000 coulombs
A) 3 B) 6 C) 2 D) 4
A) Petroleum B) Oxygen C) Natural gas D) Coal
A) Alkenes and aromatics B) Alkanes and alkynes C) Alkanes and alkenes D) Alkenes and alkynes
A) Formation of ionic bonds between carbon atoms B) Breaking of ionic bonds between carbon atoms C) Breaking of covalent bonds between carbon atoms D) Formation of covalent bonds between carbon atoms
A) Volume B) Pressure C) Mass D) Temperature
A) Oxygen B) Nitrogen C) Air D) Water
A) 25°C and 1 atmosphere pressure B) 25°C and 0.5 atmosphere pressure C) 0°C and 1 atmosphere pressure D) 0°C and 0.5 atmosphere pressure
A) Mass = Volume × Density B) Mass = Density ÷ Volume C) Volume = Mass ÷ Density D) Volume = Density × Mass
A) CnH2n-2 B) CnH2n+2 C) CnH2n D) CnH2n-4
A) Cracking B) Substitution C) Fermentation D) Oxidation
A) Double bonds between carbon atoms B) Triple bonds between carbon atoms C) Both single and double bonds between carbon atoms D) Single bonds between carbon atoms
A) Benzene B) Ethyne C) Ethene D) Methane
A) Double bonds between carbon atoms B) Both single and double bonds between carbon atoms C) Single bonds between carbon atoms D) Triple bonds between carbon atoms
A) Ethyne B) Benzene C) Ethene D) Methane
A) Linear chains of carbon atoms B) Ring structures and delocalized electrons C) Triple bonds between carbon atoms D) Double bonds between carbon atoms
A) Benzene B) Ethyne C) Butene D) Propane
A) Silver nitrate B) Nitric acid C) Sodium hydroxide D) Bromine water
A) Decolorize bromine water as well B) Turn bromine water green C) Do not react with bromine water D) React violently with bromine water
A) Saturated hydrocarbon B) Linear alkene C) Cyclic aromatic hydrocarbon D) Alkane
A) Six carbon atoms in a ring B) Three carbon atoms in a ring C) Four carbon atoms in a ring D) Five carbon atoms in a ring
A) Low boiling point B) High reactivity C) Strong odor D) Stability and resistance to addition reactions
A) It readily undergoes combustion B) It is highly reactive with halogens C) It is insoluble in most organic solvents D) It is a strong oxidizing agent
A) Medicines B) Fertilizers C) Plastics D) All of the above
A) CH3-CH2-CH2-CH2-CH3 B) CH3-CH=CH-CH=CH2 C) CH3-CH=CH-CH=CH-CH3 D) CH3-CH2-CH=CH-CH2
A) Delocalized electron cloud B) Unsaturated nature C) Low reactivity D) High boiling point
A) Ring-chain isomerism B) Optical isomerism C) Structural isomerism D) Geometric isomerism
A) Cyclohexane B) Cyclobutane C) Ethane D) Benzene
A) Benzene undergoes substitution reactions rather than addition reactions. B) Benzene exhibits geometric isomerism due to its double bonds. C) Benzene has a linear structure with alternating single and double bonds. D) Benzene is highly reactive and undergoes rapid addition reactions
A) Butyne B) Butadiene C) Butene D) Butane
A) Planar structure B) High reactivity C) Delocalized pi electrons D) Aromatic odor |