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