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