A) Hydrogen B) Sulphur(iv) oxide C) Oxygen D) Carbon (iv) oxide
A) Isomerism B) Allotropy C) Hybridisation D) Isotopy
A) Is solid at room temperature B) Has no free valence electrons C) Contains no bonded electrons D) Is a giant molecule
A) Is a good absorbent B) Has a dark colour C) Has a good carbon content D) Is rich in phosphate content
A) Ionic lattice B) Molecular solid C) Network structure D) Layer lattice
A) Ethanol B) Ammoniacal liquor C) Coal gas D) Aqueous ammonia
A) Deliquescent B) Efflorescent C) Hygroscopic D) Insoluble
A) 7.5 B) 6.7 C) 1.5 D) 10.0
A) Deliquescent B) Corrosive C) Efflorescent D) Hygroscopic
A) Double decomposition B) Neutralisation C) Oxidation D) Thermal decomposition
A) Complex salt B) Basic salt C) Normal salt D) Acidic salt
A) Chloride B) Potassium hydroxide C) Sodium chloride D) Ammonium
A) Efflorescence B) Fluorescence C) Deliquescence D) Effervescence
A) Zinc oxide B) Aluminium oxide C) Lead II oxide D) Carbon (iv) oxide
A) Ca(HCO3)_2 B) (NH4)_2SO4 C) KHSO4 D) Zn(OH)Cl
A) Hydrolysis B) Hydration C) Dehydration D) Decomposition
A) Higher than 7 B) Lower than 7 C) Equal to 7 D) Equal to 14
A) pH B) Acidity C) Concentration D) Basicity
A) High melting point B) Durability C) Metallic lustre D) Hardness
A) CO2 and H2 B) CO and H2 C) CO and N2 D) CO2 and N2
A) Natural gas B) Biomass C) Nuclear energy D) Fossil fuels
A) Carbon and sulfur B) Carbon and hydrogen C) Carbon and nitrogen D) Carbon and oxygen
A) Alkynes B) Alcohols C) Alkanes D) Alkenes
A) Geological processes over millions of years B) Synthetic chemical reactions C) Volcanic eruptions D) Plants and animals
A) Diesel B) Kerosene C) Gasoline D) Lubricating oil
A) Nitrogen gas (N2) B) Hydrogen gas (H2) C) Oxygen gas (O2) D) Carbon dioxide gas (CO2)
A) It has a sweet taste B) It is a solid at room temperature C) It is highly flammable D) It is a weak acid
A) Automotive industry B) Pharmaceutical industry C) Textile industry D) Food and beverage industry
A) Effervescence occurs when acid is added B) A green flame is observed C) Blue litmus paper turns red D) A white precipitate forms when silver nitrate is added
A) CO2 B) CO32- C) HCO3- D) H2CO3
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) Bulk chemicals C) Light chemicals D) Heavy chemicals
A) Solvay process B) Photosynthesis C) Electrolysis of brine D) Contact process
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) Baking soda B) Ammonia C) Vinegar D) Milk
A) 11 B) 10 C) 4 D) 3
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 essential for the production of medicines C) They are used as raw materials in various industries D) They are a source of clean energy
A) Butane B) Ethane C) Propane D) Methane
A) Lubricants for machinery B) Fuel for transportation C) Raw materials for plastics D) Heating and cooking fuel |