Question Paper
Class / Subject: Class 9 (ICSE) · Chemistry
Chapter: Chapter 6 — Chapter 6: Study of the First Element - Hydrogen
Time Allowed: 32 minutes
Max Marks: 16
1. What is hydrogen's key characteristic? [1]
(A) The lightest known element
(B) The heaviest element
(C) The rarest element
(D) A metal
2. What are hydrogen's properties? [1]
(A) Colourless, odourless, highly flammable
(B) Coloured and heavy
(C) Odorous and non-flammable
(D) Solid at room temperature
3. How is hydrogen prepared in the lab? [1]
(A) Reacting a metal like zinc with dilute acid
(B) Only through electricity
(C) Only through heating water
(D) It cannot be prepared
4. What test identifies hydrogen gas? [1]
(A) The 'pop test'
(B) The litmus test
(C) The flame test
(D) The smell test
5. What happens in the pop test? [1]
(A) A burning splint produces a popping sound
(B) The gas changes colour
(C) The gas produces smoke
(D) Nothing happens
6. What is hydrogen used to manufacture? [1]
(A) Ammonia
(B) Only water
(C) Only oxygen
(D) Nothing useful
7. What is hydrogenation used for? [1]
(A) Converting vegetable oils
(B) Only cooking food directly
(C) Only cleaning
(D) Nothing useful
8. Why is hydrogen important to study? [1]
(A) Its potential role in clean energy and industry
(B) No reason
(C) It's not important
(D) Only for tests
9. What is hydrogen's key characteristic? [1]
(A) The lightest known element
(B) The heaviest element
(C) The rarest element
(D) A metal
10. What are hydrogen's properties? [1]
(A) Colourless, odourless, highly flammable
(B) Coloured and heavy
(C) Odorous and non-flammable
(D) Solid at room temperature
11. How is hydrogen prepared in the lab? [1]
(A) Reacting a metal like zinc with dilute acid
(B) Only through electricity
(C) Only through heating water
(D) It cannot be prepared
12. What test identifies hydrogen gas? [1]
(A) The 'pop test'
(B) The litmus test
(C) The flame test
(D) The smell test
13. What happens in the pop test? [1]
(A) A burning splint produces a popping sound
(B) The gas changes colour
(C) The gas produces smoke
(D) Nothing happens
14. What is hydrogen used to manufacture? [1]
(A) Ammonia
(B) Only water
(C) Only oxygen
(D) Nothing useful
15. What is hydrogenation used for? [1]
(A) Converting vegetable oils
(B) Only cooking food directly
(C) Only cleaning
(D) Nothing useful
16. Why is hydrogen important to study? [1]
(A) Its potential role in clean energy and industry
(B) No reason
(C) It's not important
(D) Only for tests