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