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