Chemistry
Write True or False for the following statements:
(a) No new substance is formed during a chemical reaction.
(b) Hydrogen sulphide has rotten egg smell.
(c) When potassium iodide solution is added to lead acetate solution, a red precipitate is formed.
(d) A black residue is formed when sugar is heated.
(e) When iron and sulphur are heated together a grey mass is formed which is attracted by a magnet.
Chemical Reaction
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Answer
(a) False
Correct Statement — New substance is formed during a chemical reaction.
(b) True
(c) False
Correct Statement — When potassium iodide solution is added to lead acetate solution, a yellow precipitate is formed.
(d) True
(e) False
Correct Statement — When iron and sulphur are heated together a grey mass is formed which is not attracted by a magnet.
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