Q43. $0.05 \mathrm { MCuSO } _ { 4 }$ when treated with $0.01 \mathrm { MK } _ { 2 } \mathrm { Cr } _ { 2 } \mathrm { O } _ { 7 }$ gives green colour solution of $\mathrm { Cu } _ { 2 } \mathrm { Cr } _ { 2 } \mathrm { O } _ { 7 }$. The two\\
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solutions are separated as shown below : [SPM : Semi Permeable Membrane] Due to osmosis :\\
(1) Molarity of $\mathrm { CuSO } _ { 4 }$ solution is lowered.\\
(2) Molarity of $\mathrm { K } _ { 2 } \mathrm { Cr } _ { 2 } \mathrm { O } _ { 7 }$ solution is lowered.\\
(3) Green colour formation observed on side Y.\\
(4) Green colour formation observed on side X .