Question

A. Name a non-metal which is lustrous

B. Which gas is liberated when a metal reacts with an acid? How will you test the presence of this gas?

C. Write chemical equations that shows aluminium oxide reacts with acid as well as base

PLEASE ANSWER CORRECTLY

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Answer 1

A. Iodine

B. Hydrogen

A formation of gas bubbles has been observed along the metal's surface. The bubbles are then passed into a soap solution, and when a burning candle is held close to the bubble, the gas in the soap bubble burns with a pop sound

C.When a substance reacts chemically, both as a base or acid is termed as an amphoteric solution. As aluminium oxides, react with both acids and bases, it is known as Amphoteric Oxides. ( i i ) A l 2 O 3 + 2 N a O H → 2 N a A l O 2 + H 2 O .

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