Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Which one of the following reactions is a redox reaction? (a) C u S O 4 + 4 N H 3 → C u ( N H 3 ) 4 ] S O 4 (b) N a 2 S O 4 + B a C l 2 → B a S O 4 + 2 N a C l (c) S O 2 + H 2 O → H 2 S O 3 (d) 2 C u S O 4 + 4 K I → C u 2 I 2 + 2 K 2 S O 4 + I 2 .
Dear student In Option D Oxidation number of Cu decreases from +2 to +1 and oxidation number of iodine increases from −1 to 0.So, D is Cortrect Choice.
The reaction in which change in oxidation numbers of some of the atoms takes place is termed as a redox reaction.(a) CuSO4+2+6−2+4NH3−3+1→[Cu+2(N−3H3+1)4]S+6O4−2No change in oxidation number of any of the atoms.(b) Na2+1S+6O4−2+Ba+2Cl2−1→Ba+2S+6O4−2+2Na+1Cl−1No change in oxidation number of any one of the atoms.(c) S+4O2−2+H2+1O−2→H2+1S+4O3−2No change in oxidation number of any one of the atoms.(d) 2Cu+2S+6O4−2+4K+1I−1→Cu2+1I2−1+2K2+1S+6O4−2+I20.Oxidation number of Cu decreases from +2 to +1 and oxidation number of iodine increases from −1 to 0.Thus, out of the above four reactions, the reaction (d) is a redox reaction.
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -