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