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