Multiple choice question

4 4 4 ,oa ,oa ,oa 5 5 5 vad vad okys okys iz'u
iz'u
iz'u&1 vkWDlhdj.k ,oa vip;u dks ifjHkkf"kr djrs gq, lksnkgj.k Li"V dhft;s\
vkWDlhdj.k ,oa vodkjd inkFkZ dkSu&dkSu ls gS\
Define oxidation and reduction with the help of suitable example? What are
oxidants and reductants?–
iz'u&2 bySDVªkWu LFkkukUrj.k ds vk/kkj ij jsMkDl vfHkfØ;kvksa dks Li"V dhft;s\
Zn /kkrq dks CuSO foy;u esa rFkk Cu /kkrq dks AgNO ds foy;u esa Mqcksus ij
4 3
gksus okyh jklk;fud fØ;kvksa dks bySDVªku ds vknku&iznku }kjk le>kvksa\
Explain Redox reactions on electron transfer basis? Give chemical equations
for Zn metal dipped in CuSO 4 solution and Cu metal dipped in AgNO 3 solution
on the basis of electron transfer?–
iz'u&3 vkWDlhdj.k la[;k ls D;k vfHkizk; gS\ vkWDlhdj.k vad fufnZ"V djus ds
fu;e n'kkZb;s\
What do you mean by oxidation number? What are the laws for deciding this
number?
iz'u&4 fuEu inkFkksZ esa S dk vkWDlhdj.k vad D;k gksxk\
Find out oxidation of S in above two compounds
(a) H 2 SO 4
(b) Na 2 S 2 O 3
iz'u&5 fuEu inkFkksZ esa Mn rFkk Cr vkWDlhdj.k vad Kkr djks\
Find out oxidation number of Mn and Cr in the above compounds.
–2
(a) KMnO (b) K CrO (b) Cr O 4 2 7 2 7
+ iz'u&6 NH rFkk N2O esa N dk vkWDlhdj.k vad Kkr djks\
4
4
+ Find out oxidation number of N in NH and N
4
54