A) Sulphur(iv) oxide B) Oxygen C) Carbon (iv) oxide D) Hydrogen
A) Isomerism B) Hybridisation C) Isotopy D) Allotropy
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) Has a dark colour C) Is rich in phosphate content D) Is a good absorbent
A) Ionic lattice B) Layer lattice C) Network structure D) Molecular solid
A) Ammoniacal liquor B) Coal gas C) Aqueous ammonia D) Ethanol
A) Insoluble B) Deliquescent C) Hygroscopic D) Efflorescent
A) 10.0 B) 6.7 C) 1.5 D) 7.5
A) Corrosive B) Hygroscopic C) Deliquescent D) Efflorescent
A) Oxidation B) Neutralisation C) Double decomposition D) Thermal decomposition
A) Normal salt B) Basic salt C) Complex salt D) Acidic salt
A) Chloride B) Ammonium C) Sodium chloride D) Potassium hydroxide
A) Efflorescence B) Fluorescence C) Deliquescence D) Effervescence
A) Aluminium oxide B) Zinc oxide C) Lead II oxide D) Carbon (iv) oxide
A) Zn(OH)Cl B) Ca(HCO3)_2 C) KHSO4 D) (NH4)_2SO4
A) Hydration B) Dehydration C) Hydrolysis D) Decomposition
A) Higher than 7 B) Equal to 14 C) Equal to 7 D) Lower than 7
A) pH B) Basicity C) Concentration D) Acidity
A) High melting point B) Durability C) Hardness D) Metallic lustre
A) CO2 and H2 B) CO2 and N2 C) CO and N2 D) CO and H2
A) Biomass B) Natural gas C) Fossil fuels D) Nuclear energy
A) Carbon and oxygen B) Carbon and hydrogen C) Carbon and nitrogen D) Carbon and sulfur
A) Alcohols B) Alkynes C) Alkanes D) Alkenes
A) Geological processes over millions of years B) Synthetic chemical reactions C) Volcanic eruptions D) Plants and animals
A) Diesel B) Gasoline C) Lubricating oil D) Kerosene
A) Nitrogen gas (N2) B) Hydrogen gas (H2) C) Carbon dioxide gas (CO2) D) Oxygen gas (O2)
A) It is highly flammable B) It is a solid at room temperature C) It has a sweet taste D) It is a weak acid
A) Pharmaceutical industry B) Automotive industry C) Food and beverage industry D) Textile 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) CO2 B) CO32- C) HCO3- D) H2CO3
A) Limestone B) Air C) Petroleum D) Water
A) Is a dense, oily liquid B) Is a powerful dehydrating agent. C) Has high molar mass D) Is used extensively in industries
A) Bulk chemicals B) Heavy chemicals C) Light chemicals D) Fine chemicals
A) Electrolysis of brine B) Contact process C) Photosynthesis D) Solvay 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) Baking soda B) Ammonia C) Vinegar D) Milk
A) 4 B) 10 C) 11 D) 3
A) To calculate the molar mass of a compound B) To identify the presence of specific substances C) To measure the concentration of a solution D) determine the boiling point of a substance
A) They help in reducing greenhouse gas emissions B) They are a source of clean energy C) They are used as raw materials in various industries D) They are essential for the production of medicines
A) Butane B) Propane C) Methane D) Ethane
A) Fuel for transportation B) Raw materials for plastics C) Lubricants for machinery D) Heating and cooking fuel |