A) 32.0mole B) 5.12mole C) 1.0mole D) 0.5mole
A) 84 moles B) 8.4 moles C) 0.6 mole D) 42.00 moles
A) 8.80 mol/dm³ B) 11.42 mol/dm³ C) 0.88 mol/dm³ D) 1.14 mol/dm³
A) 1.7 B) 0.27 C) 6.0 D) 2.7
A) Increase in the level of sediment B) Presence of heavy metal ions C) Scarcity of food in water D) Reduction in the amount of dissolved oxygen
A) Calcium tetraoxosulphate (VI) B) Copper tetraoxosulphate (VI) C) Sodium tetraoxosulphate (VI) D) Aluminium tetraoxosulphate (VI)
A) Paper B) Plastics C) Wood D) Animal hide
A) Saturated B) Super saturated C) Unsaturated D) Hydrated
A) The use of an ion -exchange resin B) Passing over treated charcoal C) Aeration D) Chlorination
A) Universal solvent B) Colloids C) Concentration D) Dispersion medium
A) Energy of formation B) Free energy C) Activation energy D) Energy of reaction
A) Fourth order reaction B) Zero order reaction C) First order reaction D) Second order reaction
A) Rate of reaction B) Molecularity C) Reaction mechanism D) Rate determining step
A) Energetics B) Enthalpy C) Catalyst D) Activation energy
A) Reaction profile B) Activated complex C) Energy barrier D) Rate curve
A) Avogadro's cell B) Lead acid accumulator C) Cathodic discharger D) Leclanche cell
A) Electrolysis B) Electromotive force C) Potential difference D) Electrode potential
A) Anode B) Electrode C) Cathode D) Electrolytic cell
A) Purification of metals B) Industrial preparation of NaOH C) Diffusion of chemicals D) Extraction of metals
A) 965000 coulombs B) 96500 coulombs C) 9650 coulombs D) 9650000 coulombs
A) 3 B) 2 C) 4 D) 6
A) Oxygen B) Coal C) Petroleum D) Natural gas
A) Alkanes and alkynes B) Alkenes and aromatics C) Alkanes and alkenes D) Alkenes and alkynes
A) Breaking of covalent bonds between carbon atoms B) Formation of ionic bonds between carbon atoms C) Formation of covalent bonds between carbon atoms D) Breaking of ionic bonds between carbon atoms
A) Pressure B) Temperature C) Volume D) Mass
A) Air B) Water C) Nitrogen D) Oxygen
A) 0°C and 0.5 atmosphere pressure B) 25°C and 1 atmosphere pressure C) 0°C and 1 atmosphere pressure D) 25°C and 0.5 atmosphere pressure
A) Volume = Density × Mass B) Mass = Density ÷ Volume C) Volume = Mass ÷ Density D) Mass = Volume × Density
A) CnH2n+2 B) CnH2n C) CnH2n-2 D) CnH2n-4
A) Oxidation B) Substitution C) Fermentation D) Cracking
A) Double bonds between carbon atoms B) Single bonds between carbon atoms C) Triple bonds between carbon atoms D) Both single and double bonds between carbon atoms
A) Benzene B) Ethene C) Methane D) Ethyne
A) Triple bonds between carbon atoms B) Double 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) Ring structures and delocalized electrons B) Triple bonds between carbon atoms C) Double bonds between carbon atoms D) Linear chains of carbon atoms
A) Ethyne B) Benzene C) Propane D) Butene
A) Silver nitrate B) Sodium hydroxide C) Bromine water D) Nitric acid
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) Alkane C) Saturated hydrocarbon D) Linear alkene
A) Four carbon atoms in a ring B) Six carbon atoms in a ring C) Three carbon atoms in a ring D) Five carbon atoms in a ring
A) Strong odor B) Low boiling point C) High reactivity D) Stability and resistance to addition reactions
A) It is highly reactive with halogens B) It is a strong oxidizing agent C) It is insoluble in most organic solvents D) It readily undergoes combustion
A) Medicines B) Plastics C) Fertilizers D) All of the above
A) CH3-CH2-CH=CH-CH2 B) CH3-CH2-CH2-CH2-CH3 C) CH3-CH=CH-CH=CH-CH3 D) CH3-CH=CH-CH=CH2
A) High boiling point B) Low reactivity C) Unsaturated nature D) Delocalized electron cloud
A) Geometric isomerism B) Optical isomerism C) Structural isomerism D) Ring-chain isomerism
A) Ethane B) Benzene C) Cyclobutane D) Cyclohexane
A) Benzene is highly reactive and undergoes rapid addition reactions B) Benzene exhibits geometric isomerism due to its double bonds. C) Benzene undergoes substitution reactions rather than addition reactions. D) Benzene has a linear structure with alternating single and double bonds.
A) Butane B) Butene C) Butyne D) Butadiene
A) High reactivity B) Planar structure C) Delocalized pi electrons D) Aromatic odor |