State whether the following statements are True or False. (If a statem

1.	State whether the following statements are True or False. (If a statement is false, correct it and rewrite it.)(i) The preparation of cold drink soda- lemon is a physical change.(ii) Hard water contains the chloride and sulphate salts of calcium and magnesium in dissolved state.(iii) Combustion of fuel is a fast and irreversible manmade chemical change.(iv) Photosynthesis reaction is a man-made chemical change.
Answer» (i) False. [The preparation of cold drink soda-lemon is a chemical change.] (ii) True. (iii) True. (iv) False. [Photosynthesis reaction is a natural chemical change.]

State whether the following statements are True or False. (If a statement is false, correct it and rewrite it.)(i) The preparation of cold drink soda- lemon is a physical change.(ii) Hard water contains the chloride and sulphate salts of calcium and magnesium in dissolved state.(iii) Combustion of fuel is a fast and irreversible manmade chemical change.(iv) Photosynthesis reaction is a man-made chemical change.

Answer»

(i) False. [The preparation of cold drink soda-lemon is a chemical change.]

(ii) True.

(iii) True.

(iv) False. [Photosynthesis reaction is a natural chemical change.]