Question

An element X burns in air to form an oxide. This oxide neutralises dilute sulphuric acid to form a salt. Is X a metal or a non-metal?

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Answer

The oxide of element X neutralises acid, it means it is a basic oxide. So, X is a metal because the oxides of metals are basic in nature.

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Some of the following statements are incorrect. Find the incorrect statements and correct them. [NCERT Exemplar] a. The property of metals by virtue of which they can be drawn into wires is called ductility. b. Metals are good conductors of electricity but poor conductors of heat. c. Articles made of metals produce ringing sound when struck hard. d. Oxides of non-metals and metals are acidic in nature. e. A less reactive metal replaces a more reactive metal from its salt solution in water.

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