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