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