Noble gases
Authored by Padmavathi V
Chemistry
12th Grade
Used 33+ times
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9 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Helium is the second most abundant gas in the universe.
a) True
b) False
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
2. Which of the following noble gases do not occur in the elemental state in the atmosphere?
a) Helium
b) Neon
c) Argon
d) Radon
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
3. Which of the following is the second most abundant noble gas in the atmosphere?
a) Helium
b) Argon
c) Neon
d) Krypton
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. The main commercial source of helium is natural gas.
a) True
b) False
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
5. What are the decay products of radium?
a) Radon and oxygen
b) Radon and nitrogen
c) Lanthanum and oxygen
d) Radon and Helium
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
6. Which of the following statements is incorrect about noble gases?
a) They are monoatomic
b) They are colourless
c) They are odourless
d) They all have an outer electronic configuration of ns2np6
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
7. What is the boiling point of Helium?
a) 7.8 K
b) 0 K
c) 4.2 K
d) 3.7 K
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