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11.

 The correct statement  for the molecule , Csl3  is

 


A) It is covalent molecule

B) It contains $Cs^{+}$ and $I_3^-$

C) It contains $Cs^{3+}$ and $I^{-}$ ions

D) It contains $Cs^{+}$ , $I^{-}$ and lattice $I_{2}$ molecule.



12.

In which of the following reactions H2O2 acts as a reducing agent ?

I.  $H_{2}O_{2}+2H^{+}+2e^{-}\rightarrow2H_{2}O$

II.  $H_{2}O_{2}-2e^{-}\rightarrow O_{2}+2H^{+}$

III.  $H_{2}O_{2}+2e^{-}\rightarrow 2OH^{-}$

IV. $H_{2}O_{2}+2OH^{-}-2e^{-} \rightarrow O_{2}+2H_{2}O$


A) I and II

B) III and IV

C) I and III

D) II and IV



13.

Which of the following properties is not shown by NO?


A) It is diamagnetic in gaseous state

B) It is neutral oxide

C) It combine with oxygen to form nitrogen oxide.

D) Its bond order is 2.5



14.

The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3  and L4   absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand  strength of the four ligands is 


A) $ L_{4}$ < $L_{3}$ ,$L_{2}$ < $L_{1}$

B) $ L_{1}$ < $L_{3} $< $L_{2}$< $L_{4}$

C) $ L_{3}$ < $L_{2}$ < $L_{4}$ < $L_{1}$

D) $ L_{1}$ < $L_{2}$ < $L_{4} < $L_{3}$



15.

 The metal that cannot be obtained by electrolysis  of an aqueous  solution of its salts is 


A) Ag

B) Ca

C) Cu

D) Cr



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