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