MEDIUM
10th CBSE
IMPORTANT
Earn 100

Which of the chemical reaction represents the reaction between zinc and hydrochloric acid.

50% studentsanswered this correctly

Important Questions on Metals and Non-metals

EASY
10th CBSE
IMPORTANT
Zinc metal shows amphoteric nature, it is due to which one of the following facts:
EASY
10th CBSE
IMPORTANT
What is the form of Zinc metal available for performing experiment in the laboratory.
MEDIUM
10th CBSE
IMPORTANT
What is the correct chemical name of Na2ZnO2 ?
MEDIUM
10th CBSE
IMPORTANT
A student added dil. HCl to a test tube containing Zn granules and made following observations:
(i) Zinc surface become dull and black.
(ii) A gas evolved which burn with a pop sound. 
(iii) The solution remained colourless.
MEDIUM
10th CBSE
IMPORTANT
Which one of the following will form coloured solution in water?
EASY
10th CBSE
IMPORTANT
Some crystals of copper sulphate were dissolved in water. The colour of the solution obtained would be
MEDIUM
10th CBSE
IMPORTANT

Four students of a practical group a, b, c, d were assigned the experiment of reaction of iron nails with copper sulphate separately, which one of the students of group recorded all the correct observations.

Student Initial colour of solution. Final colour of solution.

HARD
10th CBSE
IMPORTANT
When an aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change which is observed is