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