CHEMISTRY CLASS-9TH (MCQs=1707)

The anion of halogens are commonly known as………….
a) hydrides                                           

b) nitrides
c) halides                                             

d) bromides

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Which of the following group contains elements in all three states?
a) alkali                                

b) noble gases
c) halogens                          

d) alkaline earth metals

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The chemical symbol of fluorine is…..
a) F    

b) Fl                       

c) Fn  

d) Fo

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The atomic number of fluorine is……..
a) 9    

b) 17                      

c) 35  
d) 53

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The electronic configuration of fluorine is…
a) 1s², 2s², 2p⁵                                      

b) [Ne], 3s², 3p⁵
c) [Ar],3d¹⁰ 4s², 4p⁵                             

d) [Kr],3d¹⁰ 5s², 5p⁵

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