What did the student observe when he added dilute $H C l$ to a test tube containing zinc granules?

The zinc surface became dull and black

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Gas evolved which burnt with a pop sound

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The solution remained colourless

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The solution becomes green in colour

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Solution

The correct options are
A Gas evolved which burnt with a pop sound
B The solution remained colourless
Reaction:
$Z n + 2 H C l \to Z n C l_{2} + H_{2}$
Hydrogen is evolved by the reaction of dilute non oxidizing acids on reactive metal such as zinc and burns with a pop sound. The solution remained colourless.

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Similar questions

Q. A student added dilute HCl to a test tube containing zinc granules. Which of the following observations are correct?
I. Zinc surface became dull and black.
II. A gas was evolved which burnt with a pop sound.
III. The solution remained colourless.

When a student added Zinc granules to dilute $H C l$ , a colourless and odourless gas was evolved, which was tested with a burning match stick, it was observed that:

Q. Which amongst the following can be observed when zinc granules are added to a test tube containing dilute hydrochloric acid?

2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid .

A dilute solution of sodium carbonate was added to two test tubes – one containing dil $H C l$ (A) and the other containing dilute $N a O H$ (B). What will be observations?

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What did the student observe when he added dilute HCl to a test tube containing zinc granules?

The correct options are A Gas evolved which burnt with a pop sound B The solution remained colourlessReaction:Zn+2HCl→ZnCl2+H2Hydrogen is evolved by the reaction of dilute non oxidizing acids on reactive metal such as zinc and burns with a pop sound. The solution remained colourless.

What did the student observe when he added dilute $H C l$ to a test tube containing zinc granules?