Chemical Reaction and Equation class 10 Notes, NCERT Solutions for class 10 Science - Product of Class of Achievers, NCERT Solutions for Class 10 Hindi Sparsh Manushyata, NCERT Solutions for Class 10 Hindi Sparsh Parvat Pradesh me Pavas, Aatmkathya Jaishankar Prasad Kshitij NCERT Solutions for Class 10, Savaiya Aur Kavitt Dev Kshitij NCERT Solutions for Class 10, Tulsidas Ram Lakshman Parshuram Samvad Kshitij NCERT Solutions for Class 10, संसाधन एवं विकास / sansadhan evam vikas class-10 notes in hindi. Hence, (i) is the correct option. How can the concentration of a solution be increased? Why are decomposition reactions called the opposite of combination reactions? Nitrogen is unreactive gas as compared to oxygen. When barium chloride reacts with potassium sulfate, barium sulfate and potassium chloride arc produced. Q3. BaCl2 + k2SO4 = BaSO4 + 2KCL. But such reaction is prevented in the presence of nitrogen. barium nitrate + potassium sulfate ==> barium sulfate + potassium nitrate H2 has gained oxygen to form H2O. The adsorbed permanganate on the surface cannot be … We would expect them to undergo a double displacement reaction with each other. Ans. (a) Calcium hydroxide + Carbon dioxide -> Calcium Carbonate + Water, (b) Zinc + Silver nitrate -> Zinc nitrate + Silver. (d) Barium chloride + Potassium sulphate -> Barium Sulphate + Potassium chloride. Now this is filtered (or decanted) off to give a solution that should be reasonably pure KCl(aq). The arrangement of metals in order of decreasing reactivity is called activity series of metals. Ans. chloride and barium sulfate. Sol. Oil and fat containing food items are flushed with nitrogen. Oxidation of fatty foods forming compounds with bad smell and bad taste is called rancidity. Chemical equation for double displacement. Tick the correct answer. Explain the following terms with one example of each: Ans. Q12. Q2. Ans. Ans. Why is the amount of gas collected in one of the test tubes double of the amount collected in the other on electrolysis of water ? What reactions take place during the digestion of food in our body ?Paragraph. (a) Hydrogen gas combines with nitrogen to form ammonia. Why do gold and silver not corrode in moist air ? The question given to us is, Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride. If barium sulphate is precipitated in the presence of potassium permanganate (KMnO4), it turns to a pink (violet) colour after absorbing some of the permanganate. Q12. A process in which the original substance lose their nature and identify to form a new chemical substances with different properties is called a chemical reaction. (d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Give example of a double displacement Reaction other than the one in Activity 1.10. Ans. What is the weight per volume method to calculate concentration? As an inexpensive, soluble salt of barium, Barium Chloride finds wide application in the laboratory. Q17. So we mix stoichiometric barium chloride and potassium sulfate: #BaCl_2(aq) + K_2SO_4(aq) rarr BaSO_4(s)darr + 2KCl(aq)#. What do you mean by ‘ activity series of metals ‘ and also name the most reactive metal and least reactive metal of the activity series of metals. 4 years ago. Why should magnesium ribbon be cleaned Before burning in air ? Give examples. Q6. 3BaCl2 + Al(SO4)3 –> 3BaSO4 + 2AlCl3. This is because according to the law of conservation of mass , mass can neither be created nor destroyed. Q3. Ans. Q5.Translate the following statements into chemical equations and then balance them. One unit of potassium sulfate and barium chloride are required for the reaction. The chemical formula is CaO. (a) Hydrogen gas and iron chloride are produced. (ii) 2FeSO4(s) -> Fe2O3 + SO2(g) + SO3(g). Well you could suck it dry, but this would take forever. (a) Potassium bromide (aq) + Barium iodide (aq) -> Potassium iodide (aq) + Barium bromide (s), Ans. In a decomposition reaction, single reactant breaks down to produce two or more products, where as in a combination reaction, two or more reactions combine to give a single product. Q6. Write one equation each for decomposition reactions where energy is supplied in the form of heat, light and electricity. Balance the following chemical equations: Nitric acid + Calcium hydroxide -> Calcium nitrate + water, Sodium hydroxide + Sulphuric acid -> Sodium Sulphate + Water, Sodium Chloride + Silver nitrate -> Silver Chloride + Sodium nitrate, Barium chloride + Sulphuric acid -> Barium Sulphate + Hydrochloric acid. [ Check the balance ] Barium chloride react with potassium sulfate to produce barium sulfate and potassium chloride. Ans. What is the difference between the displacement and double displacement reaction? (i) The phenomenon due to which metals are slowly eaten away by the reaction of air, water and chemicals present in the atmosphere is called corrosion. BaCl 2 + K 2 SO 4 BaSO 4 + 2 KCl You can do exactly the same preparation using potassium sulfate and barium nitrate or barium chloride, basically any solutions of a soluble barium salt and a soluble sulfate salt can be used to prepare barium sulfate. This is collected on a frit, and subjected to extensive drying at elevated temperature. Barium chloride and potassium sulfate are both ionic compounds. An equation in which the numbers of atoms of each element on the two sides of the equation is equal is called balanced chemical equation. occurring in water: Potassium sulfate and. If you continue to use this site we will assume that you are happy with it. ranitiwari98 ranitiwari98 Answer: Bacl2+K2So4----->Baso4+2KCl. 0 0. Obviously therefore O2 has been reduced. Write the balanced chemical equations for the following reactions. … when magnesium ribbon remains exposed to moist air, A white layer of magnesium oxide is formed On its surface. Gold and silver lie very low on the activity series of metals. Q14. Q19. Ans. In the presence of enzymes as catalyst in our body , starch decomposes into simple sugars whereas proteins decomposes to form simpler molecules called amino acids. Imagine that saturated solutions of barium chloride (BaCl2) and potassium sulfate (K2SO4) are mixed. A solution of a substance X Is used for white washing. See all questions in Percent Concentration. Oxidation : Oxidation is defined as a process which involves gain of oxygen or loss of hydrogen. (c)Barium chloride reacts with aluminium sulphate to give aluminium chloride and precipitate of barium sulphate. Cu (S) + 2AgNO3(aq) -> Cu (NO3)2(aq) + 2Ag (s), Copper + Silver nitrate -> Copper (ii) nitrate + Silver. BaCl 2 + K 2 SO 4 → BaSO 4 + 2KCl. Potassium is the most reactive metal and platinum is the least reactive metal. Reduction : Reduction is defined as a process which involves gain of hydrogen or loss of oxygen. A better way would be to add ethyl alcohol to the solution. The food taken by the living beings is ultimately ultimately broken down to glucose by the digestive system. (1) When barium chloride solution is added to an aqueous solution of sodium sulphate, a white precipitate of barium sulphate is obtained. Ans. Write the balanced equation for the following chemical reactions.
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