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