11th Class Chemistry The s-Block Elements

  • question_answer 22) What happens when : (i) Magnesium is burnt in air? (ii) Quick lime is heated with silica? (iii) Chlorine reacts with slaked lime? (iv) Calcium nitrate is heated?  

    Answer:

    (i) \[2Mg+{{O}_{2}}\xrightarrow{Heat}2MgO\] \[3Mg+{{N}_{2}}\xrightarrow{Heat}M{{g}_{3}}{{N}_{2}}\] (ii)\[\underset{\begin{smallmatrix} Quick \\ \lim e \end{smallmatrix}}{\mathop{CaO}}\,+\underset{Silica}{\mathop{Si{{O}_{2}}}}\,\xrightarrow{Heat}\underset{Calcium\,sillicate}{\mathop{CaSi{{O}_{3}}}}\,\] (Iii)\[\underset{Slaked\,lime}{\mathop{Ca{{(OH)}_{2}}}}\,+C{{l}_{2}}\to \underset{Bleaching\,powder}{\mathop{Ca(OCl)Cl}}\,+{{H}_{2}}O\] (iv)\[2Ca{{(N{{O}_{3}})}_{2}}\to 2Cao+2N{{O}_{2}}+3{{O}_{2}}\]  

More Questions

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos