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