A) Metals B) Water C) Salts D) Carbon compounds
A) H2SO4 B) CO2 C) NaCl D) CH4
A) Carbon B) Oxygen C) Hydrogen D) Nitrogen
A) Low melting and boiling points B) Metallic bonding C) High melting points D) High electrical conductivity
A) Insoluble in water B) Ionic in nature C) Soluble in water D) Good conductors of electricity
A) Isomerism B) Catenation C) Catalysis D) Polymerization
A) Electrovalent B) Covalent C) Metallic D) Ionic
A) Sodium carbonate B) Ethanol C) Methane D) Benzene
A) CₙH₂ₙ₊₂ B) CₙH₂ₙ₋₂ C) CₙHₙ D) CₙH₂ₙ
A) Triple bonds B) Ionic bonds C) Double bonds D) Single bonds
A) Alkane family B) Alcohol family C) Alkyne family D) Alkene family
A) C≡C B) C=C C) –OH D) –COOH
A) Alkyne family B) Ester family C) Alkane family D) Alkene family
A) CₙHₙ B) CₙH₂ₙ C) CₙH₂ₙ₋₂ D) CₙH₂ₙ₊₂
A) C₃H₄ B) CH₄ C) C₃H₈ D) C₃H₆
A) Ethene B) Methane C) Butane D) Propane
A) CₙH₂ₙ₋₂ B) CₙHₙ C) CₙH₂ₙ₊₂ D) CₙH₂ₙ
A) Ethene B) Propane C) Ethane D) Methane
A) Ethane B) Propene C) Ethyne D) Ethene
A) CH₄ B) CH₂ C) H₂ D) CO₂
A) Same colour B) Different formulae C) Same state D) Same formula and different structures
A) Same physical properties B) Same boiling point always C) Different molecular formula D) Same molecular formula but different structural formula
A) Ethane B) Methane C) Propane D) Ethene
A) Geometric isomerism B) Nuclear isomerism C) Structural isomerism D) Optical isomerism
A) Different atomic masses B) Different molecular formula C) Same molecular formula D) Same empirical formula only
A) Geometric B) Chain C) Nuclear D) Structural
A) Coal B) Crude oil C) Bitumen D) Coke
A) Distillation B) Fractional distillation C) Evaporation D) Filtration
A) Road surfacing B) Roofing material C) Fuel for cars D) Lubricant
A) Water B) Wood C) Coal D) Petroleum
A) Salt B) Sand C) Plastic D) Glass
A) No new substance B) Oxygen only C) Water only D) A new substance
A) Neutralization only B) One substance breaking down C) Exchange of ions D) Two or more substances combining
A) Combining elements B) Dissolving salts C) Breaking one compound into simpler substances D) Burning fuel
A) Chemical change B) Melting C) Sublimation D) Physical change
A) Physical change B) Mechanical change C) Chemical change D) Reversible change
A) Change in shape only B) Gas evolution C) Colour change D) Formation of precipitate
A) Releases heat B) Absorbs heat C) Produces electricity only D) Has no heat change
A) Produces flame B) Gives out heat C) Is always explosive D) Absorbs heat
A) Reversible B) Endothermic C) Neutral D) Exothermic |