Appearance Reaction with dilute $H C l$ Reaction with dilute $H N O_{3}$
Unknown metal #1 Dull gray solid with white oxide coating Dissolved with bubbles of clear gas Dissolved with bubbles of clear gas
Unknown metal #2 Solid; lustrous, smooth silver-gray surface No reaction Dissolved with bubbles of orange gas
Identify metal #1.

Mercury

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Copper

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Zinc

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Iron

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Silver

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Solution

The correct option is C Zinc
Zinc being an active metal readily reacts with hydrochloric acid at room temperature to form soluble zinc chloride and hydrogen.
$Z n + 2 H C l \to Z n {C l}_{2} + H_{2}$
Zinc reacts with dilute nitric acid and libreates nitric oxie.
$3 Z n + {8 H N O}_{3} \to {3 Z n (N O_{3})}_{2} + 4 H_{2} O + 2 N O$

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Similar questions

	Appearance	Reaction with dilute $H C l$	Reaction with dilute $H N O_{3}$
Unknown metal #1	Dull gray solid with white oxide coating	Dissolved with bubbles of clear gas	Dissolved with bubbles of clear gas
Unknown metal #2	Solid; lustrous, smooth silver-gray surface	No reaction	Dissolved with bubbles of orange gas

H N O_{3}

Unknown metal	Appearance	Reactions with dilute HCl	Reaction with dilute HNO $_{3}$
(1)	Dull gray solid with white oxide coating	Dissolved with bubbles of clear gas	Dissolved with bubbles of clear gas
(2)	Solid, lustrous smooth silver-gray surface	No reaction	Dissolved with bubbles of orange gas

Unknown metal	Appearance	Reactions with dilute HCl	Reaction with dilute HNO $_{3}$
(1)	Dull gray solid with white oxide coating	Dissolved with bubbles of clear gas	Dissolved with bubbles of clear gas
(2)	Solid; lustrous smooth silver-gray surface	No reaction	Dissolved with bubbles of orange gas

_{3}

Unknown metal	Appearance	Reactions with dilute HCl	Reaction with dilute HNO $_{3}$
(1)	Dull gray solid with white oxide coating	Dissolved with bubbles of clear gas	Dissolved with bubbles of clear gas
(2)	Solid; lustrous smooth silver-gray surface	No reaction	Dissolved with bubbles of orange gas

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