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Question 1
A balloon filled with helium rises in the air because _____.
Question 2
Which of the following is not a noble gas ?
Question 3
What is the chemical name of vinegar?
Question 4
Oxygen which is vital for life is a product of photosynthesis and comes from
Question 5
Which of the following vitamin soluble in water?
Question 6
The ‘Green House effect’ is produced due to the presence of excess amount of
Question 7
Which of the following is used as anaesthetics?
Question 8
Nitric acid does not react with
Question 9
During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?
Question 10
Galvanization is the process of applying a protective ______ coating to steel or iron.
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Feb 4SSC & Railway