Which of the following metals, on reaction with acids like HCl does not form bubbles in the solution?

Zinc (Zn)

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Iron (Fe)

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Aluminium (Al)

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Gold (Au)

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Solution

The correct option is D
Gold (Au)

Metals on reaction with acids liberate hydrogen gas. Gold (Au) and Platinum (Pt) are noble metals and are inert towards HCl. So, Gold doesn’t react with HCl. Thus, no bubbles of hydrogen gas are formed.

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A noble metal is one which is inert and does not react with acids like $H C l, H N O_{3}, H_{2} S O_{4}$ . Select an option with a set of two noble metals.

Q. Which of the following metal on reaction with hydrochloric acid does not form bubbles in the solution?

Zinc (Zn), Iron (Fe), Aluminium (Al) and Magnesium (Mg) reacts with the dilute hydrochloric acid in different test tubes. Which of the below-mentioned order of metals correctly explains the order of vigour nature of reactions.

Q. Question 7
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(a) magnesium
(b) aluminium
(c) iron
(d) copper

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Which of the following metals, on reaction with acids like HCl does not form bubbles in the solution?

The correct option is D Gold (Au) Metals on reaction with acids liberate hydrogen gas. Gold (Au) and Platinum (Pt) are noble metals and are inert towards HCl. So, Gold doesn’t react with HCl. Thus, no bubbles of hydrogen gas are formed.

The correct option is D
Gold (Au)

Metals on reaction with acids liberate hydrogen gas. Gold (Au) and Platinum (Pt) are noble metals and are inert towards HCl. So, Gold doesn’t react with HCl. Thus, no bubbles of hydrogen gas are formed.