A) Isomerism B) Allotropy C) Isotopy 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) Is rich in phosphate content B) Has a good carbon content C) Is a good absorbent D) Has a dark colour
A) Aqueous ammonia B) Ammoniacal liquor C) Ethanol D) Coal gas
A) Deliquescent B) Hygroscopic C) Insoluble D) Efflorescent
A) Fluorescence B) Effervescence C) Deliquescence D) Efflorescence
A) Decomposition B) Dehydration C) Hydrolysis D) Hydration
A) High melting point B) Hardness C) Durability D) Metallic lustre
A) CO2 and N2 B) CO2 and H2 C) CO and H2 D) CO and N2
A) Natural gas B) Biomass C) Nuclear energy D) Fossil fuels
A) Carbon and oxygen B) Carbon and hydrogen C) Carbon and nitrogen D) Carbon and sulfur
A) Alkynes B) Alkanes C) Alcohols D) Alkenes
A) Synthetic chemical reactions B) Plants and animals C) Volcanic eruptions D) Geological processes over millions of years
A) Air B) Petroleum C) Water D) Limestone
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) Heavy chemicals C) Bulk chemicals D) Light chemicals
A) They are produced in small quantities because of limited applicability. B) They are chemically pure C) They are produced by process D) They are produced in large quantities because of their high applicability
A) determine the boiling point of a substance B) To identify the presence of specific substances C) To calculate the molar mass of a compound D) To measure the concentration of a solution
A) They help in reducing greenhouse gas emissions B) They are a source of clean energy C) They are used as raw materials in various industries D) They are essential for the production of medicines
A) Ethane B) Methane C) Propane D) Butane |