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