A) Sulphur(iv) oxide B) Oxygen C) Hydrogen D) Carbon (iv) oxide
A) Isotopy B) Isomerism C) Hybridisation D) Allotropy
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 dark colour B) Is rich in phosphate content C) Is a good absorbent D) Has a good carbon content
A) Layer lattice B) Molecular solid C) Ionic lattice D) Network structure
A) Coal gas B) Ammoniacal liquor C) Ethanol D) Aqueous ammonia
A) Insoluble B) Hygroscopic C) Deliquescent D) Efflorescent
A) 1.5 B) 6.7 C) 10.0 D) 7.5
A) Efflorescent B) Corrosive C) Deliquescent D) Hygroscopic
A) Oxidation B) Double decomposition C) Neutralisation D) Thermal decomposition
A) Acidic salt B) Complex salt C) Basic salt D) Normal salt
A) Potassium hydroxide B) Sodium chloride C) Ammonium D) Chloride
A) Deliquescence B) Effervescence C) Fluorescence D) Efflorescence
A) Lead II oxide B) Carbon (iv) oxide C) Zinc oxide D) Aluminium oxide
A) Zn(OH)Cl B) (NH4)_2SO4 C) KHSO4 D) Ca(HCO3)_2
A) Dehydration B) Hydration C) Hydrolysis D) Decomposition
A) Equal to 7 B) Lower than 7 C) Higher than 7 D) Equal to 14
A) Concentration B) pH C) Basicity D) Acidity
A) Hardness B) Durability C) High melting point D) Metallic lustre
A) CO and N2 B) CO2 and N2 C) CO and H2 D) CO2 and H2
A) Fossil fuels B) Biomass C) Natural gas D) Nuclear energy
A) Carbon and sulfur B) Carbon and oxygen C) Carbon and hydrogen D) Carbon and nitrogen
A) Alkanes B) Alcohols C) Alkenes D) Alkynes
A) Plants and animals B) Geological processes over millions of years C) Synthetic chemical reactions D) Volcanic eruptions
A) Kerosene B) Diesel C) Gasoline D) Lubricating oil
A) Oxygen gas (O2) B) Hydrogen gas (H2) C) Nitrogen gas (N2) D) Carbon dioxide gas (CO2)
A) It is highly flammable B) It is a solid at room temperature C) It has a sweet taste D) It is a weak acid
A) Pharmaceutical industry B) Textile industry C) Food and beverage industry D) Automotive industry
A) Effervescence occurs when acid is added B) A white precipitate forms when silver nitrate is added C) Blue litmus paper turns red D) A green flame is observed
A) H2CO3 B) CO32- C) CO2 D) HCO3-
A) Water B) Air C) Limestone D) Petroleum
A) Has high molar mass B) Is a dense, oily liquid C) Is used extensively in industries D) Is a powerful dehydrating agent.
A) Light chemicals B) Heavy chemicals C) Bulk chemicals D) Fine chemicals
A) Photosynthesis B) Solvay process C) Contact process D) Electrolysis of brine
A) They are produced by process B) They are chemically pure C) They are produced in large quantities because of their high applicability D) They are produced in small quantities because of limited applicability.
A) Vinegar B) Ammonia C) Baking soda D) Milk
A) 4 B) 3 C) 11 D) 10
A) To measure the concentration of a solution B) determine the boiling point of a substance C) To calculate the molar mass of a compound D) To identify the presence of specific substances
A) They help in reducing greenhouse gas emissions B) They are a source of clean energy C) They are essential for the production of medicines D) They are used as raw materials in various industries
A) Propane B) Methane C) Butane D) Ethane
A) Fuel for transportation B) Heating and cooking fuel C) Raw materials for plastics D) Lubricants for machinery |