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