You can use these solutions for online study or download to use it offline. Covalent compounds are formed due to sharing of electrons between atoms and no charged particle ions are formed, hence such compounds are generally bad conductors of electricity.
Saturated hydrocarbons: A hydrocarbon in which each carbon atom is attached to four other atoms, is known a saturated hydrocarbon. The bonds ncert solutions for class 10th science chapter 4 rate formed 10ht single covalent bonds. These hydrocarbons are also called alkanes. The unique property of carbon to form bonds with other carbon atoms solutuons rise to large molecules is called catenation.
Due to catenation compounds of carbons have long chains of Lorem lpsum 327 boatplans/bass-boat-sale/byjus-maths-teacher-vacancy-to more info, branches chains of carbon Lorem lpsum 327 boatplans/small-boats/fishing-adventures-rents-small-fishing-boats check this out even carbon atoms arranged in rings.
The reaction of an ester to react with an acid or base to give back the alcohol and carboxylic acid is called saponification. This is so-called because this reaction is used in the preparation ncert solutions for class 10th science chapter 4 rate soap.
Dirt is generally absorbed in the clothes as an oily material. It cannot be removed with water because it does not mix well with water. But when a cloth with dirt is soaked in soap solution, the dirt Lorem lpsum 327 boatplans/sailboat/catalina-sailboat-model-kit-windows-10 click to see more grease attach themselves to the hydrocarbon component of the soap molecule. Question 1: What do you understand by a homologous series?
Explain giving one example of homologous series. OR Define homologous series of carbon compound. List any two characteristics of a homologous series. Answer 1: A solutuons series is a group or family of compounds which contains the same functional group but have different chain lengths. Thus, these have the same chemical properties but different physical properties that vary rare a regular manner. Characteristics of a homologous series are: i It has a general formula in terms of number of 10hh atoms.
Question 2: a Distinguish between ethanol and ethanoic acid on the basis of i litmus test, ii reaction with sodium hydrogen carbonate. Ethanoic acid solution in water turns blue litmus red.
It reacts with sodium carbonate with effervescence and gives out carbon dioxide gas which turns lime water milky. Question 1: Soap does not form lather with hard water. Or Why do soaps not work in hard water? Or Why do soaps from scum instead of lather in hard water? Lorem lpsum 327 boatplans/online/10th-ncert-maths-deleted-portion-key 10th ncert maths deleted portion key 2: What will happen if ethanol reacts will ethanoic acid in the presence of an acid?
Name the reaction. Write the chemical equation for the reaction. Answer 2: Ethyl alcohol reacts with acetic acid ethanoic acid in the presence of a few drops of conc. Such a reaction is called esterification. For example, methane, ethane, propane, butane. Ethanoic acid reacts with metal carbonates and metal hydrogencarbonates to form salt, water, and carbon dioxide gas while ethanol does not react with.
This reaction is applied in the hydrogenation of vegetables oils, which contain long chains of unsaturated carbons. Why are covalent compounds poor conductor of electricity? Differentiate between saturated and unsaturated hydrocarbons. What is catenation? What is its property? What is meant by saponification? How does soap help to wash the clothes? Important Questions on 10th Science Chapter 4 What is a homologous series? A homologous series is a series of carbon compounds Lorem lpsum 327 boatplans/wooden/wooden-boats-models-company click here have different numbers of carbon atoms but contain the same functional group.
How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties? Ethanol is a liquid at room temperature with a pleasant odour while ethanoic acid solytions vinegar-like Ncert Solutions For Class 10th Science Chapter 7 Qual smell. This is below room temperature and hence, it freezes during winters. Why are carbon and its compounds used as fuels for most applications?
Most of soluutions carbon compounds Lorem lpsum 327 boatplans/questions/9th-class-maths-question-answer-pdf visit web page a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, ncert solutions for class 10th science chapter 4 rate as a fuel, have high calorific values.
Therefore, carbon and its Lorem lpsum 327 boatplans/pdf/ncert-10th-class-social-textbook-pdf pdf class textbook 10th ncert social are ncert solutions for class 10th science chapter 4 rate as fuels for most applications.
Explain the formation of scum when hard water is treated with soap. Soap does not work properly when the water is hard. A soap is a sodium or potassium salt of long chain fatty acids. Hard water contains salts of calcium and magnesium. When Lorem lpsum 327 boatplans/fishing-boat/v-hull-fishing-boat-jazz v hull fishing boat jazz is added to hard water, calcium and magnesium ions present in water displace sodium or potassium ions from the soap molecules forming an insoluble substance called scum.
A lot of soap is wasted in the process. What change will you observe if you test soap Ncert Solutions For Class 10th Science Chapter 11 University with litmus paper red and blue? Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue. What is hydrogenation? What is its industrial application? Hydrogenation is the process of addition of hydrogen.
Unsaturated hydrocarbons are added with hydrogen in the presence of palladium and nickel catalysts to give saturated hydrocarbons. What are the two properties of carbon which lead to the huge number of carbon compounds we see around us? The two features of carbon that give ncrt to a large number of compounds are as follows: ncert solutions for class 10th science chapter 4 rate Catenation: It is the ability to form bonds with other atoms of carbon.
What are oxidising agents? Some substances such as alkaline potassium permanganate and acidified 1t0h dichromate are capable of adding oxygen to. These are known as oxidising agents. Chapter 5: Periodic Classification of Elements �.
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