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