Metals react with _______ to form metal oxides.
Question 24. Which of the following statements is not correct ? (a) All metal carbonates react with acid to give a salt, water and carbon dioxide (b) All metal oxides react with water to give salt and acid (c) Some metals react with acids to give salt and hydrogen (d) Some non-metal oxides react with water to form an acid
When a non-metal reacts with oxygen, it forms a non-metallic oxide. This non-metallic oxide when reacted with H2O, form a substance, ‘X’ with pH value less than 7. Select the correct option regarding the substance, ‘X’.
Fill in the following balnks with suitable words:
(a) Metals are ........................... conductors of heat and ............................
(b) Most non-metals are ........................... conductors of heat and ...........................
(c) Phosphorous is a very ........................... non-metal.
(d) Metals react with acids to produce ........................... gas.
(e) Iron is more ........................... than copper.
(f) Metals form ........................... oxides whereas non-metals form ........................... oxides.
(g) Sulphur forms ........................... oxide whereas magnesium forms ........................... oxide.
(h) A non-metal is used to make an antiseptic solution called tincture ...........................