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