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