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