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