Soda lime is a mixture of____________________?
Soda lime is a mixture of____________________?
A. CaO and KOH
B. CaO and NaOH
C. NaOH and Na2O
D. Na2O and KOH
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50% inversion of configuration of molecules take place in a___________________?
50% inversion of configuration of molecules take place in a___________________?A. E1 – reaction
B. E2 – reaction
C. SN1 – reaction
D. SN2 – reactionThe pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?
The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?A. 3
B. 2.7
C. 2
D. 1.5Combustion analysis is performed to determine__________________?
Combustion analysis is performed to determine__________________?A. Empirical formula
B. Molecular mass
C. Molecular formula
D. Formula massWhen an atom absorbs energy the lines in the spectrum will appear which are_________________?
When an atom absorbs energy the lines in the spectrum will appear which are_________________?A. Brighter
B. Darker
C. Colourless
D. Hard to locateThe whole universe is made up of almost _______of Hydrogen?
The whole universe is made up of almost _______of Hydrogen?A. 50%
B. 60%
C. 70%
D. 80%Sum of exponents of molar concentration is called___________________?
Sum of exponents of molar concentration is called___________________?A. Order of reaction
B. Molecularity
C. Rate of reaction
D. Average of reaction