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