Danh mục: Chapter 2

  • Chapter 2. Acids Bases and Salt – Exercises

    Chapter 2. Acids Bases and Salt 2.5. Exercises – Group Actitvity A. Exercises 1. A solution turns red litmus blue, its pH is likely to be(a) 1 (b) 4 (c) 5 (d) 10 2. A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains(a) NaCl (b) HCl (c) […]

  • More About Salts

    Chapter 2. Acids Bases and Salt 2.4. More About Salts In the previous sections we have seen the formation of salts during various reactions. Let us understand more about their preparation, properties and uses. Activity 2.13 Write the chemical formulae of the salts given below. Potassium sulphate, sodium sulphate, calcium sulphate,magnesium sulphate, copper sulphate, sodium […]

  • How Strong Are Acid Or Base Solutions?

    Chapter 2. Acids Bases and Salt​ 2.3. How Strong Are Acid Or Base Solutions? We know how acid-base indicators can be used to distinguish between an acid and a base. We have also learnt in the previous section about dilution and decrease in concentration of H+ or OH– ions in solutions. Can we quantitatively find […]

  • What Do All Acids And All Bases Have In Common?

    Chapter 2. Acids Bases and Salt 2.2. What Do All Acids And All Bases Have In Common? In Section 2.1 we have seen that all acids have similar chemical properties. What leads to this similarity in properties? We saw in Activity 2.3 that all acids generate hydrogen gas on reacting with metals, so hydrogen seems […]

  • Understanding The Chemical Properties Of Acids And Bases

    Chapter 2. Acids Bases and Salt You have lear tastes of food are due to acids and bases, respectively, present in them. nt in your previous classes that the sour and bitterIf someone in the family is suffering from a problem of acidity after overeating, which of the following would you suggest as a remedy– […]

error: Content is protected !!
Menu