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