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