1. Tina took 6ml of Lead Nitrate solution in a beaker and add approximately 5ml of Potassium Iodide solution to it. What would she observe?
2. Which of the following is the correct observation for the burning of magnesium ribbon
3. Which of the following statements about the given reaction are correct?
3Fe(s) + 4H₂O(g) → Fe₃O₄(s) + 4H₂(g)
(i) Iron metal is getting oxidised
(ii) Water is getting reduced
(iii) Water is acting as reducing agent
(iv) Water is acting as oxidising agent
4. Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
5. Which among the following statement(s) is (are) true?
Exposure of silver chloride to sunlight for a long duration turns grey due to
(i) the formation of silver by decomposition of silver chloride
(ii) sublimation of silver chloride
(iii decomposition of chlorine gas from silver chloride
(iv) oxidation of silver chloride
5. MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂
Identify the substance reduced in the above equation.
