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Question 1
Who among the following gave the ‘Law of Octaves’?
Question 2
Dinitrogen (N2) and dioxygen (O2) are the main constituents of air but they do not react with each other to form oxides of nitrogen because of _____________.
Question 3
Density of ice is ________.
Question 4
Which among the following is not ore of Manganese(Mn)?
Question 5
Standard 18–carat gold sold in the market contains ________.
Question 6
Which one of the following elements is used as a time keeper in atomic clocks?
Question 7
Dutch metal that is used in making artificial ornaments is a alloy of ________.
Question 8
Which among the following is the correct expression for the ideal gas equation?
Question 9
Atomic number of which of the following elements is greater than that of iron?
Question 10
Air has maximum proportion of which inert gas?
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Mar 10SSC & Railway