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