Chimie plm
Chemistry Quiz Challenge
Test your knowledge of chemistry with our engaging quiz! Whether you’re a student or a chemistry enthusiast, this quiz is designed to challenge your understanding of various chemical concepts.
With questions ranging from molecular structures to reaction rates, you'll have the opportunity to:
- Test your knowledge
- Learn new facts
- Challenge your friends
The order of increasing ionic radius for the following ions Cl- , P3- and S2- is:
Cl- < S 2- < P 3- ;
Cl- < P 3- < S 2- ;
P 3- < S 2- < Cl- .
Which element is predicted to have the following ground-state configuration [Kr]4d105s25p4 :
c. Polonium.
Antimony;
b. Tellurium;
The ionic solids CaO and KCl crystallize to form structures of the same type. In which compound are the interactions between the ion stronger and what factors lead to the difference?
CaO, smaller charges and smaller radius;
CaO, higher charges and smaller radius.
b. KCl, smaller charges and smaller radius;
The order of decreasing carbon-oxygen bond length in CO, CO2, CO3 2- is:
CO > CO2 > CO3 2- ;
CO2 > CO > CO3 2-
CO3 2- > CO2 > CO.
Which of the following species are paramagnetic
N2-
N2+
N2
Aluminium crystallizes in a FCC structure and has an atomic radius of 143 pm. The density of aluminium is
3.78 g/cm-3
2.72 g/cm-3 ;
2.28 g/cm-3 ;
A helium balloon has a volume of 12.4 L, when the pressure is 0.885 atm and the temperature is 22 oC. The balloon is cooled at a constant pressure until the temperature is -18 oC. The volume of the balloon at this stage will be:
22.4L
10.7L
11.2L
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