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  • Alkali metals are dissolved in a liquid to impart blue colour and the solution is paramagnetic. This solution on standing for a long time decomposes to release a flammable gas. What is the liquid?<

Alkali metals are dissolved in a liquid to impart blue colour and the solution is paramagnetic. This solution on standing for a long time decomposes to release a flammable gas. What is the liquid?

Option: 1

\mathrm{H_2O}
 


Option: 2

\mathrm{Et_2O}
 


Option: 3

\mathrm{NH_3}

 


Option: 4

\mathrm{CO_2}


Answers (1)

best_answer

In liquid ammonia the alkali metal releases an electron that imparts the blue colour. This solution on standing forms  \mathrm{MNH_2} and Hydrogen gas. 

 

Posted by

Divya Prakash Singh

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