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Important Chemical Formula

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Important Chemical Formula

shape Introduction

"A Chemical Formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs." In this article we will share some important chemical formula which are frequently asked in several competitive exams. In this Important Chemical Formula list, Compound Name, Chemical formula of the compound and its uses are given.
Here is the list of Important Chemical Formula
1. Calcium Carbonate:
Formula:[latex]Ca{CO}_{3}[/latex]
Uses: Non-prescription drug for relief from acid indigestion and heartburn. Also considered a calcium supplement..
2. Sodium Chloride:
Formula: NaCl
Uses: Used to season food (during food preparation and at the table), also used in the past as a method of food preservation.
3. Methane:
Formula: [latex]CH_{4}[/latex]
Uses: natural gas, fuel (also called Marsh Gas)
4. Aspirin:
Formula: [latex]{C}_{9}{H}_{8}{O}_{4}[/latex]
Uses: Pain Reliever
5. Potassium Tartrate:
Formula: [latex]{K}_{2}{C}_{4}{H}_{4}{O}_{6}[/latex]
Uses: cream of tartar, cooking
6. Baking soda:
Formula: [latex]NaH{CO}_{4}[/latex]
Uses: cooking
7. Acetaminophen:
Formula: [latex]{C}_{9}{H}-{9}{NO}_{2}[/latex]
Uses: Pain Reliever
8. Acetic Acid:
Formula: [latex]{C}_{2}{H}_{4}{O}_{2}[/latex]
Uses: Active ingredient in vinegar
9. Caffeine:
Formula: [latex]{C}-{8}{H}_{10}{N}_{4}{O}_{2}[/latex]
Uses: stimulant in coffee, tea, some soda
10. Propane:
Formula:[latex]{C}_{3}{H}_{8}[/latex]
Uses: fuel for cooking
11. Sodium Carbonate:
Formula: [latex]{Na}_{2}{CO}_{3}[/latex]
Uses: washing soda
12.Phosphoric Acid:
Formula:[latex]{H}_{3}{PO}_{4}[/latex]
Uses: avouring in soda
13. Ascorbic acid:
Formula: [latex]{C}_{6}{H}_{8}{O}_{6}[/latex]
Uses: Essential vitamin (vitamin C)
14. Ammonia:
Formula: [latex]{NH}_{3}[/latex]
Uses: fertilizer, household cleaner when dissolved in water
15. Ethylene Glycol:
Formula: [latex]{C}_{2}{H}_{6}{O}_{2}[/latex]
Uses: antifreeze
16. Calcium Carbonate:
Formula: [latex]Ca{CO}_{3}[/latex]
Uses: antacid
17. Ethanol:
Formula: [latex]{C}_{2}{H}_{5}OH[/latex]
Uses: disinfectant, alcoholic beverages
18.Carbon dioxide:
Formula: [latex]{CO}_{2}[/latex]
Uses: carbonating agent in soda
19. Hydrochloric Acid:
Formula: HCl
Uses: production of batteries, photoash bulbs and reworks. It's even used to process sugar and make gelatin.
20. Calcium Oxide:
Formula: CaO
Uses: Less common in modern homes than in the past. Glows when heated; was used in theatres before invention of electric lighting. Health risks on skin contact or inhalation.
21. Sucrose:
Formula: [latex]{C}_{12}{H}_{22}{O}_{11}[/latex]
Uses: Used in cooking. Use as a sweetener.
22. Potassium Carbonate:
Formula:[latex]{K}_{2}{CO}_{3}[/latex]
Uses: Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form.
23. Plaster of Paris:
Formula: [latex]Ca{SO}_{4} •1⁄2{H}_{2}O
Uses: used for casts to hold broken limbs in place, modelling casts, sculptures and in plasterboard walls and ceilings
24. Gypsum:
Formula: [latex]Ca{SO}_{4}2{H}_{2}O[/latex]
Uses: Use to manufacture dry wall, plaster, joint compound.
25. Sodium Bicarbonate:
Formula:[latex] NaHC{O}_{3}[/latex]
Uses: Used in baking where it reacts with other ingredients, releasing carbon dioxide (CO2), helping dough rise
26. Sulphuric Acid:
Formula:[latex]{H}_{2}{SO}_{4}[/latex]
Uses: Used in lead-acid batteries for cars and other vehicles. It is also known as Vitriol.
27. Hydrogen Peroxide:
Formula:[latex]{H}_{2}{O}_{2}[/latex]
Uses: Used as a mouth wash (Personal Hygiene) Chemical formula of Psuedo Alum - [latex]{K}_{2}{SO}_{4} .{Al}_{2}{({SO}_{4} )}_{3} .24{H}_{2}O[/latex] Aqua Regia is a mixture of - HCl and [latex]HN{O}_{3}[/latex] . In aqua-regia,3 parts of HCl and 1 part of[latex]HN{O}_{3}[/latex] are mixed.

shape Formulae

S.No. Name Chemical Compound Chemical Formula
1. Baking powder Sodium Bicarbonate NaHCO3
2. Blue vitriol Copper sulphate CuSO4.XH2O
3. Bleaching Poeder Calcium Oxychloride CaOcl2
4. Chloroform Trichloro Methane CHCL3
5. Chalk (Marble) Calcium Carbonate CaCO3
6. Caustic Potash Potassium Hydroxide KOH
7. Caustic Soda Sodium Hydroxide NaOH
8. Dry Ice Solid Carbondioxide CO2
9. Epsom Magnesium Sulphate Mgso4
10. Gypsum Calcium Sulphate Caso4.2H2O
11. Green Vitriol Ferrous Sulphate FeSo4
12. Heavy water Deuterium Oxide D2O
13. Vinegar Acetic Acid CH3COOH
14. Washing soda Sodium Carbonate Na2CO3
15. Slaked lime alcium Hydroxide Ca(OH)2
16. Potash Alum Pottassium Aluminium Sulphate KAI(SO4)2.12H2O
17. Quick lime Calcium oxide CaO
18. Plaster of Paris Calcium Sulphate caSO4.[latex]\frac{1}{2}[/latex]H2O
19. Mohr's Salt Ammonium Ferrous Sulphate (NH4)2Fe(SO4)2.6H2O
20. White Vitriol Zinc Sulphate ZnSo4.7H2O
21. Marsh gas Methane CH4
22. Magnesia Magnesium Oxide Mgo
23. Laughing Gas Nitrous Oxide N2O
24. Vermelium Mercuric Sulphade HgS
25. Sugar Sucrose C12H22O11
26. T.N.T Trinitrotoluence C7H5N3O6
27. Sans Silicon oxide SiO2

shape Apps

S.NO Name of the Compound Application
1. Hydrogen Chloride (HCL) Found in stomach as Gastric Juice for Digestion of food
2. Sulphuric Acid Often referred to as the “King of Chemicals”, has applications mainly in Car Batteries, Detergents, Fertilizers
3. Acetic Acid (CH3COOH) Chemical name of Vinegar
4. Citric Acid Present in Lemons and Citrus fruit
5. Sodium Chloride Chemical Name of Common Salt
6. Benzoic Acid Mainly used as a preservative for Food
7. Sodium Carbonate Chemical Name of Washing Soda
8. Nitric Acid Commonly used in Manufacturing of Fertilizers like Ammonium Nitrate
9. Sodium Hydrogen Chemical name of Baking Soda
10. Carbonate
11. Formic Acid Used as Food Preservative, found mainly in ants, low concentration is useful to Humans. High Concentration is dangerous
12. Potassium Hydroxide Chemical name of Caustic Pottash
13. Calcium Hydroxide Chemical name of Lime Water
14. Boric Acid – Hydrogen Borate Commonly used antiseptic, Flame retardant
15. Magnesium Hydroxide Chemical name of Milk of Magnesia, commonly used an antacid
16. Aluminum Hydroxide Most commonly used foaming agent in Fire Extinguishers
17. Potassium Nitrate Commonly used in manufacturing of Match Sticks and Gunpowder
18. Calcium Carbonate Very Important Compound in Cement Industry
19. Calcium Sulphate Chemical name of Plaster of Paris
20. Calcium Hypochlorite Chemical name of Bleaching Powder
21. 2-Acetoxybenzoic acid Chemical name of Aspirin
22. Ethanol Chemical name of Alcohol
23. Copper Sulphate Chemical name of Blue Vitriol – Hydrated Salt
24. Ferrous Sulphate Chemical name of Green Vitriol - Hydrated Salt
25. Magnesium Sulphate Chemical name of Epsom Salt - Hydrated Salt
26. Borax Chemical name of Sodium Borate - Hydrated Salt
27. Trichloromethane Chemical name of Chloroform
28. Carbon Dioxide Chemical Name of Dry Ice, primarily used as a cooling agent

shape Quiz

Q1. Reaction between Vinegar and Baking Soda produces ___
    A. Copper B. Carbon Dioxide C. Copper Sulphate D. Magnesium Oxide Answer: B

Q2. If an atom of Calcium has mass number 42 and atomic number 20. How many neutrons does it contain?
    A. 20 B. 22 C. 42 D. 24 Answer: B

Q3. Glycol is added to aviation gasoline because it
    A. reduces evaporation of petrol B. increase efficiency of petrol C. prevents freezing of petrol D. reduces consumption of petrol Answer: C

Q4. What is the boiling point of ethanol?
    A. 78.37 degree Celsius B. 87.37 degree Celsius C. 64.7 degree Celsius D. 100 degree Celsius Answer: A

Q5. Gypsum plaster is produced by heating gypsum to which temperature?
    A. 100 °F B. 200 °F C. 400 °F D. 300 °F Answer: D

Q6. Sodium nitrate is useful for the production of ___
    A. Fertilizers B. Smoke Bomb C. Glass D. All of the above Answer: D

Q7. What is the formula of organic compound Lactic acid?
    A. CHCH(OH)COOH B. [latex]{CH}_{3}CH(OH)COOH[/latex] C. [latex]{CH}_{3}CH(OH)COO[/latex] D. [latex]{CH}_{3}CH(OH)COH[/latex] Answer: A

Q8. Pyrometallurgical processes are generally grouped into which of the following categories?
    A. Calcining, Roasting B. Refining, Smelting C. Both A & B D. None of the above Answer: C

Q9. What is the chemical formula for Sodium Chloride (Salt)?
    A. [latex]Na{Cl}_{2}[/latex] B. NaCl C. [latex]{Na}_{2}{Cl}_{2}[/latex] D. [latex]{Na}_{2}C[/latex] Answer: B

Q10. Who among the following was the rst person to isolate methane gas?
    A. Alessandro Volta B. Louis Pasteur C. Archimedes D. None of the above Answer: A

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