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