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