Question

A student added dilute HCl to a test tube containing zinc granules and made following observations :

(a) the zinc surface became dull and black

(b) a gas evolved which burnt with a pop sound

(c) the solution remained colourless

(d) the solution becomes green in colour

Answer 1

Answer:

option b is correct because in this reaction hydrogen gas is released

Answer 2

EXPLANATION

Zn+2HCl→ZnCl2+H2

Zn+2HCl→ZnCl2+H2Zinc surface become dull and black due to formation of ZnCl2.

Zn+2HCl→ZnCl2+H2Zinc surface become dull and black due to formation of ZnCl2.H2 gas evolved which burnt with a pop sound.

Zn+2HCl→ZnCl2+H2Zinc surface become dull and black due to formation of ZnCl2.H2 gas evolved which burnt with a pop sound.Solution remained colourless.

Zn+2HCl→ZnCl2+H2Zinc surface become dull and black due to formation of ZnCl2.H2 gas evolved which burnt with a pop sound.Solution remained colourless.All statements are correct.

FINAL ANSWERS

(a) the zinc surface became dull amsd black.

(b) a gas evolved which burnt with a pop sound.

(c) the solution remained colourless.

brainliest please