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