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