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