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