A) Hydrogen B) Sulphur(iv) oxide C) Carbon (iv) oxide D) Oxygen
A) Allotropy B) Isomerism C) Isotopy D) Hybridisation
A) Has no free valence electrons B) Is a giant molecule C) Is solid at room temperature D) Contains no bonded electrons
A) Is rich in phosphate content B) Is a good absorbent C) Has a dark colour D) Has a good carbon content
A) Ionic lattice B) Layer lattice C) Network structure D) Molecular solid
A) Ammoniacal liquor B) Coal gas C) Ethanol D) Aqueous ammonia
A) Efflorescent B) Hygroscopic C) Insoluble D) Deliquescent
A) 10.0 B) 6.7 C) 1.5 D) 7.5
A) Corrosive B) Deliquescent C) Hygroscopic D) Efflorescent
A) Double decomposition B) Neutralisation C) Oxidation D) Thermal decomposition
A) Basic salt B) Normal salt C) Complex salt D) Acidic salt
A) Sodium chloride B) Potassium hydroxide C) Chloride D) Ammonium
A) Fluorescence B) Effervescence C) Efflorescence D) Deliquescence
A) Carbon (iv) oxide B) Zinc oxide C) Aluminium oxide D) Lead II oxide
A) Ca(HCO3)_2 B) Zn(OH)Cl C) (NH4)_2SO4 D) KHSO4
A) Hydration B) Decomposition C) Hydrolysis D) Dehydration
A) Equal to 7 B) Lower than 7 C) Higher than 7 D) Equal to 14
A) Acidity B) pH C) Basicity D) Concentration
A) High melting point B) Hardness C) Metallic lustre D) Durability
A) CO2 and N2 B) CO and H2 C) CO2 and H2 D) CO and N2
A) Biomass B) Nuclear energy C) Fossil fuels D) Natural gas
A) Carbon and sulfur B) Carbon and hydrogen C) Carbon and oxygen D) Carbon and nitrogen
A) Alkenes B) Alcohols C) Alkynes D) Alkanes
A) Synthetic chemical reactions B) Volcanic eruptions C) Geological processes over millions of years D) Plants and animals
A) Lubricating oil B) Gasoline C) Diesel D) Kerosene
A) Oxygen gas (O2) B) Nitrogen gas (N2) C) Carbon dioxide gas (CO2) D) Hydrogen gas (H2)
A) It has a sweet taste B) It is highly flammable C) It is a solid at room temperature D) It is a weak acid
A) Automotive industry B) Pharmaceutical industry C) Textile industry D) Food and beverage industry
A) A green flame is observed B) Effervescence occurs when acid is added C) Blue litmus paper turns red D) A white precipitate forms when silver nitrate is added
A) CO2 B) HCO3- C) CO32- D) H2CO3
A) Petroleum B) Water C) Air D) Limestone
A) Is a dense, oily liquid B) Is a powerful dehydrating agent. C) Has high molar mass D) Is used extensively in industries
A) Heavy chemicals B) Light chemicals C) Fine chemicals D) Bulk chemicals
A) Solvay process B) Photosynthesis C) Contact process D) Electrolysis of brine
A) They are produced in large quantities because of their high applicability B) They are produced in small quantities because of limited applicability. C) They are chemically pure D) They are produced by process
A) Baking soda B) Ammonia C) Milk D) Vinegar
A) 10 B) 4 C) 3 D) 11
A) determine the boiling point of a substance B) To measure the concentration of a solution C) To identify the presence of specific substances D) To calculate the molar mass of a compound
A) They help in reducing greenhouse gas emissions B) They are used as raw materials in various industries C) They are a source of clean energy D) They are essential for the production of medicines
A) Butane B) Ethane C) Methane D) Propane
A) Raw materials for plastics B) Fuel for transportation C) Heating and cooking fuel D) Lubricants for machinery |