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