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