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