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