CBSE Class 10 Science
Question 4 of 45
Solved 2024 Sample Question Paper CBSE Class 10 Science — Question 4
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Question Question 4
On adding dilute sulphuric acid to a test tube containing a metal 'X', a colourless gas is produced when a burning match stick is brought near it. Which of the following correctly represents metal 'X'?
- Sodium
- Sulphur
- Copper
- Silver
Sodium
Reason — When sodium is reacted with dil. H2SO4, sodium sulphate is formed and hydrogen gas is liberated.
2Na + H2SO4 (dil.) ⟶ Na2SO4 + H2