A) Hydrogen B) Oxygen C) Carbon (iv) oxide D) Sulphur(iv) oxide
A) Allotropy B) Isotopy C) Isomerism 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) Has a dark colour C) Is a good absorbent D) Has a good carbon content
A) Molecular solid B) Layer lattice C) Network structure D) Ionic lattice
A) Ethanol B) Coal gas C) Ammoniacal liquor D) Aqueous ammonia
A) Hygroscopic B) Efflorescent C) Deliquescent D) Insoluble
A) 6.7 B) 7.5 C) 10.0 D) 1.5
A) Hygroscopic B) Deliquescent C) Corrosive D) Efflorescent
A) Thermal decomposition B) Double decomposition C) Neutralisation D) Oxidation
A) Acidic salt B) Complex salt C) Basic salt D) Normal salt
A) Ammonium B) Chloride C) Potassium hydroxide D) Sodium chloride
A) Deliquescence B) Effervescence C) Fluorescence D) Efflorescence
A) Zinc oxide B) Aluminium oxide C) Carbon (iv) oxide D) Lead II oxide
A) Zn(OH)Cl B) Ca(HCO3)_2 C) KHSO4 D) (NH4)_2SO4
A) Hydrolysis B) Hydration C) Decomposition D) Dehydration
A) Lower than 7 B) Higher than 7 C) Equal to 14 D) Equal to 7
A) Acidity B) pH C) Basicity D) Concentration
A) Hardness B) Durability C) Metallic lustre D) High melting point
A) CO2 and N2 B) CO and H2 C) CO2 and H2 D) CO and N2
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) Alkynes B) Alcohols C) Alkanes D) Alkenes
A) Plants and animals B) Geological processes over millions of years C) Synthetic chemical reactions D) Volcanic eruptions
A) Kerosene B) Lubricating oil C) Diesel D) Gasoline
A) Nitrogen gas (N2) B) Oxygen gas (O2) C) Carbon dioxide gas (CO2) D) Hydrogen gas (H2)
A) It is a solid at room temperature B) It is highly flammable C) It has a sweet taste D) It is a weak acid
A) Food and beverage industry B) Automotive industry C) Pharmaceutical industry D) Textile industry
A) A green flame is observed B) A white precipitate forms when silver nitrate is added C) Blue litmus paper turns red D) Effervescence occurs when acid is added
A) CO32- B) CO2 C) HCO3- D) H2CO3
A) Water B) Limestone C) Petroleum D) Air
A) Is a powerful dehydrating agent. B) Has high molar mass C) Is a dense, oily liquid D) Is used extensively in industries
A) Light chemicals B) Fine chemicals C) Bulk chemicals D) Heavy chemicals
A) Solvay process B) Contact process C) Photosynthesis D) Electrolysis of brine
A) They are chemically pure B) They are produced in small quantities because of limited applicability. C) They are produced by process D) They are produced in large quantities because of their high applicability
A) Ammonia B) Baking soda C) Milk D) Vinegar
A) 4 B) 3 C) 11 D) 10
A) determine the boiling point of a substance B) To calculate the molar mass of a compound C) To identify the presence of specific substances D) To measure the concentration of a solution
A) They are a source of clean energy B) They are essential for the production of medicines C) They help in reducing greenhouse gas emissions D) They are used as raw materials in various industries
A) Ethane B) Butane C) Methane D) Propane
A) Heating and cooking fuel B) Lubricants for machinery C) Fuel for transportation D) Raw materials for plastics |