A) Carbon (iv) oxide B) Hydrogen C) Oxygen D) Sulphur(iv) oxide
A) Isotopy B) Isomerism C) Hybridisation 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) Has a good carbon content B) Has a dark colour C) Is rich in phosphate content D) Is a good absorbent
A) Layer lattice B) Molecular solid C) Ionic lattice D) Network structure
A) Ammoniacal liquor B) Ethanol C) Coal gas D) Aqueous ammonia
A) Insoluble B) Deliquescent C) Hygroscopic D) Efflorescent
A) 1.5 B) 10.0 C) 6.7 D) 7.5
A) Hygroscopic B) Corrosive C) Deliquescent D) Efflorescent
A) Oxidation B) Double decomposition C) Neutralisation D) Thermal decomposition
A) Acidic salt B) Basic salt C) Normal salt D) Complex salt
A) Chloride B) Sodium chloride C) Potassium hydroxide D) Ammonium
A) Fluorescence B) Efflorescence C) Effervescence D) Deliquescence
A) Lead II oxide B) Aluminium oxide C) Carbon (iv) oxide D) Zinc oxide
A) Zn(OH)Cl B) Ca(HCO3)_2 C) (NH4)_2SO4 D) KHSO4
A) Decomposition B) Dehydration C) Hydration D) Hydrolysis
A) Equal to 14 B) Lower than 7 C) Higher than 7 D) Equal to 7
A) Concentration B) Acidity C) pH D) Basicity
A) Metallic lustre B) Durability C) Hardness D) High melting point
A) CO2 and N2 B) CO and H2 C) CO2 and H2 D) CO and N2
A) Biomass B) Natural gas C) Fossil fuels D) Nuclear energy
A) Carbon and hydrogen B) Carbon and oxygen C) Carbon and sulfur D) Carbon and nitrogen
A) Alcohols B) Alkenes C) Alkynes D) Alkanes
A) Synthetic chemical reactions B) Plants and animals C) Volcanic eruptions D) Geological processes over millions of years
A) Kerosene B) Lubricating oil C) Diesel D) Gasoline
A) Carbon dioxide gas (CO2) B) Oxygen gas (O2) C) Hydrogen gas (H2) D) Nitrogen gas (N2)
A) It is a solid at room temperature B) It has a sweet taste C) It is highly flammable D) It is a weak acid
A) Pharmaceutical industry B) Automotive industry C) Food and beverage industry D) Textile industry
A) Effervescence occurs when acid is added B) Blue litmus paper turns red C) A white precipitate forms when silver nitrate is added D) A green flame is observed
A) CO2 B) CO32- C) H2CO3 D) HCO3-
A) Petroleum B) Air C) Water D) Limestone
A) Has high molar mass B) Is a dense, oily liquid C) Is used extensively in industries D) Is a powerful dehydrating agent.
A) Fine chemicals B) Heavy chemicals C) Bulk chemicals D) Light chemicals
A) Photosynthesis B) Electrolysis of brine C) Contact process D) Solvay process
A) They are produced in large quantities because of their high applicability B) They are chemically pure C) They are produced by process D) They are produced in small quantities because of limited applicability.
A) Milk B) Vinegar C) Baking soda D) Ammonia
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 help in reducing greenhouse gas emissions B) They are used as raw materials in various industries C) They are essential for the production of medicines D) They are a source of clean energy
A) Methane B) Butane C) Propane D) Ethane
A) Fuel for transportation B) Raw materials for plastics C) Heating and cooking fuel D) Lubricants for machinery |