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