Salt A commonly used in bakery products on heating gets converted into another salt B which itself is used for removal of hardness of water and a gas C is evolved. Answer: What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide ? A. Question 13. She forgot to label the solutions and litmus paper is not available in the laboratory. In general, when an acid reacts with a metal oxide, the products are a, hydrochloric acid produces chloride salts, A salt has no overall charge, since the sum of the charges on their, The sum of the charges on the ions in the neutral salt must be zero. Question 5. The lattice energy, the cohesive forces between these ions within a solid, determines the solubility. The chemical formula of baking powder is sodium hydrogencarbonate (NaHCO3); whereas; that of washing soda is sodium carbonate (Na2 CO3.10H2O). (i) Sodium bicarbonate from sodium chloride Why does tooth decay start when the pH of mouth is lower than 5.5 ?

(iii) Baking soda When chlorine gas is passed through dry Ca(OH)2 (Y) produces bleaching powder (Z) used for disintifecting drinking water. It is called Washing soda. (b) Potato (4.5 – 6.0) X will turn blue litmus to red because it is acidic in nature having pH value less than 7. pH Scale : It is a scale used for measuring hydrogen ion concentration. The salt of a weak acid and a strong base gives a basic solution. An aqueous solution turns red litmus solution blue. What is the commerClal name of calcium sulphate hemihydrate ?

1 M HCl or 1 M CH3COOH In many cases, the apparent opacity or transparency are only related to the difference in size of the individual monocrystals. The reaction of ammonia with H2O to produce OH- ion is a reversible reaction that lies far to the left: \[\ce{NH3 + H2O \rightleftharpoons NH4+ + OH-}\], Only a small fraction of the ammonia reacts, The metal hydroxides, such as KOH, that completely dissociate in water are strong bases, Metal hydroxides are named by the metal followed by “hydroxide”, Mg(OH)2 is a weak base because of low solubility (ingredient of milk of magnesia), An acid and a base react to form a salt, an ionic compound that has a cation other than H+ and an anion other than OH-, • Always produces water and is known as a neutralization reaction, \[\begin{alignat}{3} Answer: Question 4. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. Write two uses of Plaster of Paris. For example, sodium acetate, NaCH3COO, smells similar to acetic acid CH3COOH. CHRIS - Hazardous Chemical Data. Question 3. Answer: Its molecular formula is NaHCO3. 95th Edition. Answer: Question 17. The solubility is dependent on how well each ion interacts with the solvent, so certain patterns become apparent. Question 14. Lemon juice, Baking soda solution or Vinegar. Here’re some points which can differ the acid, base and salt substances. Tamilnadu Board Class 10 English Solutions, Tamilnadu Board Class 9 Science Solutions, Tamilnadu Board Class 9 Social Science Solutions, Tamilnadu Board Class 9 English Solutions, Thermometers in Physics | Definition, Types – Thermometry and Calorimetry, Thermal Expansion in Physics | Definition, Types, Applications – Thermometry and Calorimetry, Maths Formulas for Class 6 to Class 12 PDF | All Basic Maths Formulas, MCQ Questions for Class 6 Hindi with Answers Vasant Bhag 1, MCQ Questions for Class 7 Hindi with Answers Vasant Bhag 2, MCQ Questions for Class 8 Hindi with Answers Vasant Bhag 3, MCQ Questions for Class 6 English with Answers Honeysuckle, A Pact with the Sun.