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