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