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प्रश्न
_______ is the least reactive metal.
विकल्प
silver
sodium
zinc
gold
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उत्तर
Gold is the least reactive metal.
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संबंधित प्रश्न
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Name one metal which is extracted by:
Reduction with heat alone.
Name the metal which is extracted from the ore called ‘rock salt’.
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Which method of refining is used to get 99.8% pure aluminium?
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How many valence electrons are present in non- metals?
X is an element in the form of a powder. X burns in oxygen and the product is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences:
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(b) If X is a non-metal, then the litmus will turn ______.
(c) If X is a reactive metal, then ______ will be evolved, when X reacts with dilute sulphuric acid.
(d) If X is a non -metal, it will form _ oxide, which will form ______ solution with water.
(e) If X is a non -metal, it will not conduct electricity unless it is carbon in the form of ______.
Which one of the following is not true of metal :
Metal will have 1 or 2 or 3 electrons in their valence shell.
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Write the name.
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Explain concept with example/explain with the help of a balanced equation.
Calcination
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