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