Acids Bases and...

Common salt besides being used in kitchen can also be used as the raw material for making

(i) washing soda

(ii) bleaching powder

(iii) baking soda

(iv) slaked lime

One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is

To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is

Which of the following statements is correct about an aqueous solution of an acid and of a base?

(i) Higher the pH, stronger the acid

(ii) Higher the pH, weaker the acid

(iii) Lower the pH, stronger the base

(iv) Lower the pH, weaker the base

The pH of the gastric juices released during digestion is

Which of the following phenomena occur, when a small amount of acid is added to water?

(i) Ionisation

(ii) Neutralisation

(iii) Dilution

(iv) Salt formation

Which one of the following can be used as an acid–base indicator by a visually impaired student?

Which of the following substance will not give carbon dioxide on treatment with dilute acid?

Which of the following is acidic in nature?

Which of the following is used for dissolution of gold?

Which of the following is not a mineral acid?

Which among the following is not a base?

Which of the following statements is not correct?

Match the chemical substances given in Column (A) with their appropriate application given in Column (B)

Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the colour obtained? (You may use colour guide given in Figure)

Which of the following is(are) true when HCl (g) is passed through water?

(i) It does not ionise in the solution as it is a covalent compound.

(ii) It ionises in the solution.

(iii) It gives both hydrogen and hydroxyl ion in the solution.

(iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule

Which of the following statements is true for acids?

Which of the following are present in a dilute aqueous solution of hydrochloric acid?

Identify the correct representation of reaction occurring during chloralkali process