A) Isomerism B) Isotopy C) Allotropy D) Hybridisation
A) Is a giant molecule B) Has no free valence electrons C) Contains no bonded electrons D) Is solid at room temperature
A) Has a dark colour B) Is rich in phosphate content C) Is a good absorbent D) Has a good carbon content
A) Coal gas B) Ethanol C) Aqueous ammonia D) Ammoniacal liquor
A) Efflorescent B) Hygroscopic C) Deliquescent D) Insoluble
A) Effervescence B) Efflorescence C) Fluorescence D) Deliquescence
A) Hydrolysis B) Decomposition C) Hydration D) Dehydration
A) High melting point B) Durability C) Metallic lustre D) Hardness
A) CO and H2 B) CO2 and H2 C) CO and N2 D) CO2 and N2
A) Fossil fuels B) Nuclear energy C) Biomass D) Natural gas
A) Carbon and sulfur B) Carbon and hydrogen C) Carbon and nitrogen D) Carbon and oxygen
A) Alcohols B) Alkenes C) Alkynes D) Alkanes
A) Volcanic eruptions B) Synthetic chemical reactions C) Geological processes over millions of years D) Plants and animals
A) Water B) Limestone C) Air D) Petroleum
A) Is used extensively in industries B) Has high molar mass C) Is a dense, oily liquid D) Is a powerful dehydrating agent.
A) Bulk chemicals B) Fine chemicals C) Light chemicals D) Heavy chemicals
A) They are produced in small quantities because of limited applicability. B) They are produced in large quantities because of their high applicability C) They are produced by process D) They are chemically pure
A) To identify the presence of specific substances B) To calculate the molar mass of a compound C) determine the boiling point of a substance D) To measure the concentration of a solution
A) They are a source of clean energy B) They are essential for the production of medicines C) They help in reducing greenhouse gas emissions D) They are used as raw materials in various industries
A) Propane B) Ethane C) Butane D) Methane |