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