A) Isotopy B) Hybridisation C) Allotropy D) Isomerism
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) Has a good carbon content C) Is a good absorbent D) Is rich in phosphate content
A) Coal gas B) Ethanol C) Aqueous ammonia D) Ammoniacal liquor
A) Insoluble B) Hygroscopic C) Deliquescent D) Efflorescent
A) Effervescence B) Fluorescence C) Efflorescence D) Deliquescence
A) Hydration B) Hydrolysis C) Dehydration D) Decomposition
A) Hardness B) Metallic lustre C) Durability D) High melting point
A) CO and N2 B) CO2 and H2 C) CO and H2 D) CO2 and N2
A) Biomass B) Natural gas C) Nuclear energy D) Fossil fuels
A) Carbon and hydrogen B) Carbon and nitrogen C) Carbon and oxygen D) Carbon and sulfur
A) Alkenes B) Alkanes C) Alkynes D) Alcohols
A) Volcanic eruptions B) Geological processes over millions of years C) Synthetic chemical reactions D) Plants and animals
A) Limestone B) Water C) Air D) Petroleum
A) Is used extensively in industries B) Is a powerful dehydrating agent. C) Has high molar mass D) Is a dense, oily liquid
A) Light chemicals B) Bulk chemicals C) Fine chemicals D) Heavy chemicals
A) They are produced in small quantities because of limited applicability. B) They are chemically pure C) They are produced in large quantities because of their high applicability D) They are produced by process
A) To measure the concentration of a solution B) determine the boiling point of a substance 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) Methane B) Butane C) Propane D) Ethane |